DESC:FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&

THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See section 10, Rule 13]

HERBICIDAL COMPOSITION FOR EFFECTIVE WEED ERADICATION

RAJDHANI PETROCHEMICALS PRIVATE LIMITED of 6B, Basement, Lalita Complex, Opp, HDFC Bank, 352/3, Rasala Road, Navrangpura, Ahmedabad-380009, Gujarat, India

THE FOLLOWING SPECIFICATION PARTICULARLY DESCRIBES THE INVENTION
AND THE MANNER IN WHICH IT IS TO BE PERFORMED.

FIELD OF THE INVENTION
The present invention generally relates to the field of herbicides. Particularly, the present disclosure provides a composition comprising a compound Halosulfuron methyl; in combination with Fluthiacet methyl; and at least one additional herbicide compound for controlling weeds specifically for controlling weeds growing amongst crop plants.

BACKGROUND OF THE INVENTION
Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the present invention, or that any publication specifically or implicitly referenced is prior art.

Various chemical compounds have been developed and used as herbicides for controlling different weeds growing along with crop plants and competing with them and thereby overtaking the crop plants in the field and resulting into loss for farmers. Success of controlling weeds depends upon various factors including mode of action, dose and rate of application of herbicide, specificity of herbicide in controlling particular weeds, mechanism of dissipation herbicide and other factors. To compensate the specificity of the herbicide to control only limited number of species of weeds, loss of herbicide due to dissipation and other such reasons, to improve the weedicide effect, different herbicides are applied simultaneously at much higher rates leading to antagonistic effect of different herbicides when applied together thereby resulting into ineffective weed control, resistance to such herbicides due to their continued application at much higher doses and harmful effects on crop plants leading to loss of crops in the field.

Halosulfuron Methyl (3-chloro-5-(4,6-dimethoxypirimidin2 ylcarbamoylsulfamoyll-l-metbyl-pyrasole-4-carboxylate) is a postemergence herbicide used for the control of weeds. Halosulfuron-methyl interferes with ALS enzyme, resulting in a rapid cessation of cell division and plant growth in both roots and shoots. The sulfonylurea herbicides are rapidly absorbed by the foliage as well as by the roots of plants. Halosulfuron methyl is readily translocated throughout the plant and inhibits cell division.

Fluthiacet is a thiadiazolopyridazine that is 3-iminotetrahydro[1,3,4]thiadiazolo[3,4-a]pyridazin-1-one in which the exocyclic nitrogen has been substituted by a 5-[(carboxymethyl)thio]-4-chloro-2-fluorophenyl group. A protoporphyrinogen oxidase inhibitor, it is used (usually as the corresponding methyl ester proherbicide, fluthiacet-methyl) for the control of broad-leaved weeds in crops such as maize and soya. It has a role as an EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor, a herbicide and an agrochemical. It is an organic sulfide, a monocarboxylic acid, a member of monochlorobenzenes, a member of monofluorobenzenes and a thiadiazolopyridazine.

It is well known that due to evolutionary process, the herbs may develop resistance against what was originally considered as a “lethal dose of herbicide”, in which case, the farmer may be forced to apply more amount of the herbicide to attain the same or lesser result. Application of herbicide which is greater than what was originally considered as “lethal dose of herbicide” has several disadvantages. Also, specific herbicides are tailor made taking into consideration specific type of crop and specific type of herb and does not provide wide-spectrum protection.

While it is a common belief that mixing different herbicides may be beneficial as compared to singular herbicide, there is no clear guideline as to: (a) what types of inhibitors / classes of compounds / specific compounds should be mixed, (b) in what proportions, the inhibitors / class of compounds / specific compounds should be mixed, (c) there is no guarantee that the intended purpose would be attained, wherein the intended purpose could be any of delaying development of resistance, reduction in quantity of dose which functions as the lethal dose, or a wide-spectrum control against many types of herbes, etc.

Therefore, attempts have been made to provide compositions comprising different herbicides to overcome one or more drawbacks mentioned above with the conventional manner of use of different herbicides together at higher rates. However, such attempts have not be successful in providing the effective composition comprising different herbicides. Thus, there still exists an unmet need in the art to provide compositions comprising different herbicides, wherein different herbicides comprised in the composition do not counteract each other’s action but provide synergistic effect, the composition is stable, can minimize or curtail toxic or harmful effect on crop plants, help in reducing the dose and rate of application and effective on array of different weeds.

Thus, there exists a need to develop additional combinations of herbicides which possesses at least one capacity to delay development of resistance, capacity to reduce quantity of dose which functions as the lethal dose, or capacity to act as a wide-spectrum control against many types of herbes, etc.

OBJECTS OF THE INVENTION
An object of the present invention is to provide a composition comprising combination of compounds having synergistic herbicidal effect.

Another object of the present invention is to provide a composition comprising herbicides, said composition being stable.

Yet another object of the present invention is to provide a composition comprising herbicide compounds for effective control of wide array of weeds.

SUMMARY OFTHE INVENTION
This summary is provided to introduce a selection of concepts in a simplified form that are further described below in Detailed Description section. This summary is not intended to identify key features or essential features of the subject matter of the present invention, nor is it intended to be used as an aid in determining the scope of the subject matter disclosed herein.

In one aspect the present disclosure provides a stable composition comprising combination of herbicide compounds.

In an embodiment the present invention provides a composition comprising compounds having synergistic herbicidal effect.

In another embodiment the present disclosure provides a composition comprising synergistic combination of herbicide compounds for effective control of wide array of weeds.

In an embodiment there is provided a composition comprising a herbicide compound Halosulfuron methyl; in combination with Fluthiacet methyl; and at least one additional herbicide compound for controlling weeds specifically for controlling weeds growing amongst crop plants..

In one embodiment of the invention, the at least one additional herbicide to be included in the composition is one of 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide, a triazine herbicide, and a synthetic auxin herbicide.

In one embodiment of the invention, the 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide is selected from a group comprising topramezone, tembotrione, mesotrione, sulcotrione and tolpyralate.

In one embodiment of the invention, the triazine herbicideis selected from a group comprising atrazine, ametryn and metribuzin.

In one embodiment, the synthetic auxin herbicide is 2,4-D herbicide.

In one embodiment the composition comprises effective amount of herbicide compounds for exhibiting herbicidal activity.

Other aspects of the invention will be set forth in the description which follows, and in part will be apparent from the description, or may be learnt by the practice of the invention.

DETAILED DESCRIPTION OF THE INVENTION
The following is a detailed description of embodiments of the disclosure. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the scope of the present disclosure.

All publications herein are incorporated by reference to the same extent as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference. Where a definition or use of a term in an incorporated reference is inconsistent or contrary to the definition of that term provided herein, the definition of that term provided herein applies and the definition of that term in the reference does not apply.

Reference throughout this specification to “one embodiment” or “an embodiment” means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases “in one embodiment” or “in an embodiment” in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In some embodiments, numbers have been used for quantifying weights, percentages, ratios, and so forth, to describe certain embodiments of the invention and are to be understood as being modified in some instances by the term “about.”

The term “about” when used in conjunction with any figure would mean + 10% of said figure. Accordingly, in some embodiments, the numerical parameters set forth in the written description are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.

Various terms as used herein are shown below. To the extent a term used is not defined below, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.

As used in the description herein that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.

Unless the context requires otherwise, throughout the specification which follow, the word “comprise” and variations thereof, such as, “comprises” and “comprising” are to be construed in an open, inclusive sense that is as “including, but not limited to.”

The recitation of ranges of values herein is merely intended to serve as a short hand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein.

All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g. “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention

Groupings of alternative elements or embodiments of the invention disclosed herein arenot to be construed as limitations. Each group member can be referred to individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified.

The description that follows, and the embodiments described therein, is provided by way of illustration of an example, or examples, of particular embodiments of the principles and aspects of the present disclosure. These examples are provided for the purposes of explanation, and not of limitation, of those principles and of the disclosure.

It should also be appreciated that the present disclosure can be implemented in numerous ways, including as a composition, a formulation, a kit comprising the herbicide compounds or composition or formulations thereof, a method of applying the compositions or formulation provided in accordance with the present invention for controlling weeds

The following disclosure provides many exemplary embodiments of the inventive subject matter. Although each embodiment represents a single combination of inventive elements, the inventive subject matter is considered to include all possible combinations of the disclosed elements. Thus, if one embodiment comprises elements A,B, and C, and a second embodiment comprises elements B and D, then the inventive subject matter is also considered to include other remaining combinations of A, B, C, or D, even if not explicitly disclosed.

As described herein, the term ‘effective amount of ’is used to imply the amount of the herbicide compound used in the composition or the amount of composition or the amount of formulation in accordance with the present invention that is necessary for the elimination, prevention or curb of growth of unwanted or undesired plants and vegetation referred as weeds without causing harmful effect to crop plants. The effective amount may be dependent on the time, soil, target weeds, crops and environmental conditions at the time of application.

The present invention relates to a composition comprising synergistic combination of herbicide compounds for effective control of wide array of weeds.

In one embodiment of the present invention there is provided a composition comprising a herbicide compound Halosulfuron methyl; in combination with Fluthiacet methyl;and atleast one additional herbicide compound for controlling wide array of weeds growing amongst crop plants.

In one embodiment of the invention, the at least one additional herbicide to be included in the composition is one of 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide, a triazine herbicide, and a synthetic auxin herbicide.

In one embodiment of the invention, the 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide is selected from a group comprising topramezone, tembotrione, mesotrione, sulcotrione and tolpyralate.

In one embodiment of the invention, the triazine herbicideis selected from a group comprising atrazine, ametryn and metribuzin.

In one embodiment, the synthetic auxin herbicide is 2,4-D herbicide.

In an aspect of the invention, there is provided a herbicidal composition comprising an effective amount of halosulfuron methyl; an effective amount of fluthiacetmethyl; an effective amount of at least one additional herbicide compound, the additional herbicide compound being selected from a group comprising of topramezone, tembotrione, mesotrione, sulcotrione, tolpyralate, atrazine, ametryn, metribuzin, and 2,4-D herbicide; and at least one agriculturally acceptable excipient.

In an embodiment of the invention, the herbicidal composition being in a form selected from a group comprising of Capsule Suspension (CS), Dispersible Concentrate (DC), Dustable Powder (DP), Emulsifiable Concentrate (EC), Emulsifiable Granule (EG), Emulsifiable Powder (EP), a Water-In-Oil Emulsion (EO), an Oil-In-Water Emulsion (EW), Jambo balls or bags (Water Soluble Pouch), Micro-Emulsion (ME), Oil Dispersion (OD), Oil Miscible Flowable Concentrate, Oil Miscible Suspension (OF), Oil Miscible Liquid (OL), Suspension Concentrate (SC), Suspo-Emulsion (SE), Soluble Concentrate (SL), Wettable Granule (WG), Water Dispersible Granule (WDG), Water Soluble Granule (SG), Water Soluble Powder (SP), Wettable Powder (WP), a Mixed Formulation of CS and SC (ZC), a Mixed Formulation of CS and SE (ZE), a Mixed Formulation of CS and EW (ZW), Granule (GR), Soil Applied Granules (SAG), and Controlled release granules (CR).

In an embodiment of the invention, halosulfuron methyl being present in an amount ranging from 1 % to 25% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.2 % to 10% wt/wt of the composition; the at least one additional herbicide compound being present in an amount ranging from 3% to 70% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In another embodiment of the invention, halosulfuron methyl being present in an amount ranging from 2 % to 17.5% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.3 % to 3% wt/wt of the composition; the at least one additional herbicide compound being present in an amount ranging from 3% to 70% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In yet another embodiment of the invention, a ratio of halosulfuronmethyl:fluthiacetmethyl being in a range of 5:1 to 7:1; a ratio of the at least one additional herbicide compound :fluthiacetmethyl being in a 2:1 to 125:1; and a ratio of the at least one additional herbicide compound :halosulfuron methyl being in a range of 1: 0.040 to 2.5.

In another embodiment of the invention, if the at least one additional herbicide compound is 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide, the composition comprises halosulfuron methyl being present in an amount ranging from 5 % to 17.5% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 1.5 % to 3% wt/wt of the composition; the 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide being present in an amount ranging from 3% to 30% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In yet another embodiment of the invention, if the at least one additional herbicide compound is 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide, a ratio of halosulfuron methyl: fluthiacetmethyl being in a range of 5:1 to 7:1; a ratio of the 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide: fluthiacetmethyl being in a 2:1 to 10:1; and a ratio of the 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide : halosulfuron methyl being in a range of 1: 0.50 to 2.5.

In another embodiment of the invention, if the at least one additional herbicide compound is triazine herbicide, the composition comprises halosulfuron methyl being present in an amount ranging from 2 % to 4% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.3 % to 1.5% wt/wt of the composition; the triazine herbicide being present in an amount ranging from 30% to 70% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition

In yet another embodiment of the invention, if the at least one additional herbicide compound is triazine herbicide, a ratio of halosulfuronmethyl:fluthiacetmethyl being in a range of 5:1 to 6:1; a ratio of the triazine herbicide :fluthiacetmethyl being in a range of 80:1 to 120:1; and a ratio of the triazine herbicide :halosulfuron methyl being in a range of 1: 0.040 to 1.

In another embodiment of the invention, if the at least one additional herbicide compound is synthetic auxin herbicide, the composition comprises halosulfuron methyl being present in an amount ranging from 2 % to 4% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.3 % to 1% wt/wt of the composition; the synthetic auxin herbicide being present in an amount ranging from 40% to 60% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In yet another embodiment of the invention, if the at least one additional herbicide compound is synthetic auxin herbicide, a ratio of halosulfuronmethyl:fluthiacetmethyl being in a range of 5.5:1 to 6.5:1; a ratio of the synthetic auxin herbicide :fluthiacetmethyl being in a 90:1 to 100:1; and a ratio of the synthetic auxin herbicide: halosulfuron methyl being in a range of 1: 0.050 to 1.

In still another embodiment of the invention, the composition comprises 6% to 12% wt/wt of halosulfuron methyl, 1% to 2.5 % wt/wt of fluthiacetmethyl, 10% to 20% wt/wt of tembotrione, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In a further another embodiment of the invention, the composition comprises 6% to 12% wt/wt of halosulfuron methyl, 1% to 2.5% wt/wt of fluthiacetmethyl, 8% to 18 % wt/wt of mesotrione, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In yet another embodiment of the invention, the composition comprises 6% to 12% wt/wt of halosulfuron methyl, 1% to 2.5 % wt/wt of fluthiacetmethyl, 2% to 6% wt/wt of Topramezone, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In still another embodiment of the invention, the composition comprises 6% to 12% wt/wt of halosulfuron methyl, 1% to 2.5% wt/wt of fluthiacetmethyl, 2% to 6% wt/wt of Tolpyralate, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In a furthermore embodiment of the invention, the composition comprises 12.5% to 17.5% wt/wt of halosulfuron methyl, 2% to 3% wt/wt of fluthiacetmethyl, 20% to 30% wt/wt of sulcotrione, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In a furthermore another embodiment of the invention, the composition comprises 2 to 3.5 % wt/wt of halosulfuron methyl, 0.1% to 1% wt/wt of fluthiacetmethyl, 35% to 45% wt/wt of Atrazine, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In an embodiment of the invention, the composition comprises 2 to 3.5% wt/wt of halosulfuron methyl, 0.1% to 1% wt/wt of fluthiacetmethyl, 35% to 45% wt/wt of Metribuzin, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In another embodiment of the invention, the composition comprises 2% to 3.5% wt/wt of halosulfuron methyl, 0.1% to 1% wt/wt of fluthiacetmethyl, 55% to 65% wt/wt of Ametryn, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In a further embodiment of the invention, the composition comprises 2% to 4% wt/wt of halosulfuron methyl, 0.3% to 0.7% wt/wt of fluthiacetmethyl, 40% to 55% wt/wt of 2,4-D herbicide, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In an embodiment of the invention, the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 15% wt/wt of tembotrione (i.e. 15±1.5 % wt/wtoftembotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In another embodiment of the invention, the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacet methyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 12% wt/wt of mesotrione (i.e. 12±1.2 % wt/wt ofmesotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In a furthermore embodiment of the invention, the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 4% wt/wt of Topramezone (i.e. 4±0.4 % wt/wt ofTopramezone), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In an embodiment of the invention, the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 4% wt/wt of Tolpyralate (i.e. 4±0.4 % wt/wt ofTolpyralate), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In yet another embodiment of the invention, the composition comprises about 15% wt/wt of halosulfuron methyl(i.e. 15±1.5 % wt/wt of halosulfuron methyl), about 2.5% wt/wt of fluthiacetmethyl(i.e. 2.5± 0.25 % wt/wt of fluthiacetmethyl), about 24% of sulcotrione (i.e. 2.4±0.24 % wt/wt of sulcotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In yet another embodiment of the invention, the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 40% wt/wt of Atrazine (i.e. 40±4 % wt/wt ofAtrazine), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In still another embodiment of the invention, the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 40% wt/wt of Metribuzin(i.e. 40±4 % wt/wt ofMetribuzin), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In a further embodiment of the invention, the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 60% wt/wt of Ametryn (i.e. 60±6 % wt/wt ofAmetryn), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In another embodiment of the invention, the composition comprises about 3% wt/wt of halosulfuron methyl(i.e. 3±0.3 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl(i.e. 0.5±0.05 % wt/wt of fluthiacet methyl), about 48% wt/wt of 2,4-D herbicide (i.e. 48±4.8 % wt/wt of 2,4-D herbicide), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In a further embodiment of the invention, the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 15% wt/wt of tembotrione (i.e. 15±1.5 % wt/wt oftembotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of Suspension concentrate.

In a furthermore embodiment of the invention, the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9% wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 12% wt/wt of mesotrione (i.e. 12±1.2 % wt/wt ofmesotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of Suspension concentrate.

In still another embodiment of the invention, the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 4% wt/wt of Topramezone (i.e. 4±0.4 % wt/wt of Topramezone), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of Suspension concentrate.

In a further embodiment of the invention, the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 4% wt/wt of Tolpyralate (i.e. 4±0.4 % wt/wt of Tolpyralate), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of Suspension concentrate.

In an embodiment of the invention, the composition comprises about 15% wt/wt of halosulfuron methyl(i.e. 15±1.5 % wt/wt of halosulfuron methyl), about 2.5% wt/wt of fluthiacetmethyl(i.e. 2.5±0.25 % wt/wt of fluthiacetmethyl), about 24% of sulcotrione (i.e. 24±2.4 % wt/wt of sulcotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule.

In an embodiment of the invention, the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 40% wt/wt of Atrazine (i.e. 40±4 % wt/wt ofAtrazine), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule.

In another embodiment of the invention, the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 40% wt/wt of Metribuzin (i.e. 40±4 % wt/wt ofMetribuzin), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule.

In yet another embodiment of the invention, the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 60% wt/wt of Ametryn (i.e. 60±6 % wt/wt ofAmetryn), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule.

In a furthermore embodiment of the invention, the composition comprises about 3% wt/wt of halosulfuron methyl(i.e. 3±0.3 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl(i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 48% wt/wt of 2,4-D herbicide (i.e. 48±4.8 % wt/wt of 2,4-D herbicide), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule.

In still another embodiment of the invention, the at least one agriculturally acceptable excipient being selected from a group comprising of safeners, dispersing agents, filler cum carrier, wetting agents, thickener, pH regulator, anti-foaming agent, solvent, emulsifier, preservative, anti-freeze agent, disintegrating agent, viscosity modifying agent, .

In a further embodiment of the invention, the safener is selected from a group comprising of Cloquintocet mexyl, Cyprosulfamide, Isoxadifen ethyl and Fenclorim.

In another embodiment of the invention, the dispersing agent is selected from a group comprising of Ethylene-propylene oxide block copolymer, Sodium naphthalene sulphonate formaldehyde condensates, Benzenesulfonic acid, hydroxy-, polymer with formaldehyde, phenol and urea, sodium salt, Naphthalenesulfonic acid-polymer with formaldehyde-sodium salt, Modified Sodium lignosulphonate, Modified polyacrylate copolymer, sodium salt of naphthalene sulfonate condensate and Sodium Polycarboxylate.

In yet another embodiment of the invention, the filler cum carrier is selected from a group comprising of china clay/kaolin clay, sand, silica, precipitated silica, bentonite, attapulgite and morillonite.

In still another embodiment of the invention, the wetting agent is selected from a group comprising of Polyalkyleneoxide modified trisiloxane, trisiloxane ethoxylate, Sodium isopropyl naphthalene sulfonate, Polyalkyleneoxide modified trisiloxane and Diisobutyl naphthalene sulfonate, sodium salt.

In another embodiment of the invention, the thickener is selected from a group comprising of xanthan gum, guar gum, gelatin, carboxymethylcellulose (CMC), bentonite clay, attapulgite clay, sodium polyacrylate and aluminum magnesium silicate.

In yet another embodiment of the invention, the pH regulator is selected from a group comprising of sodium hydroxide, potassium hydroxide, calcium hydroxide, sodium carbonate, potassium carbonate, calcium carbonate, potassium hydrogen phosphate salt solution, acetic acid & sodium acetate, ammonia & ammonium chlorides, citric acid, benzoic acid, salicylic acids, hydrochloric acid, phosphoric acid, sodium citrate, soda ash and carboxylic acids.

In still another embodiment of the invention, the anti-foaming agent is selected from a group comprising of siloxane polyalkylene oxide, polydimethyl siloxane, polysiloxane emulsion, vegetable oil-based antifoam, silicone oil emulsion and magnesium stearate.

In a further embodiment of the invention, the solvent is selected from a group comprising of demineralized (DM) water, alcohols-ethanol, propanol, ketones-acetone, ethers-dipropyl ether, dioxane, tetrahydrofuran; mineral oil, heavy aromatic hydrocarbons, alkyl pyrrolidone, N-methyl-2-pyrrolidone, N-octyl pyrrolidone, N,N-dimethyldecanamide, N, N-dimethyloctanamide, N, N-dimethylamine; dimethyl sulfoxide, propylene carbonate and methylated seed oil.

In a furthermore embodiment of the invention, the emulsifier is selected from a group comprising of castor oil ethoxylate 40 mole, Polyoxyethylenealkylphenyl ether alkyl aryl sulfonate, 3-methoxy N, N-dimethyl propionamide, Polyglyceryl-3 caprylate, Polysorbate 60 (polyoxyethylene sorbitan monostearate-Tween 60), solvents alkyl phenol, aryl phenol, alkyl phenol ethoxylate, fatty acid esters, fatty acid alkanol amides and alkoxylated fatty acid ester.

In an embodiment of the invention, the preservative is selected from a group comprising of benzisothiazolin-3-one, formaldehyde, sodium benzoate, potassium sorbate and 2-bromo-2-nitropropane-1,3-diol.

In another embodiment of the invention, the anti-freeze agent is selected from a group comprising of alcohols (ethylene glycol, propylene glycol), glycerol, 1,3-butendiol, urea, magnesium sulfate heptahydrate and sodium chloride.

In yet another embodiment of the invention, the disintegrating agent is selected from a group comprising of potassium phosphate, ammonium sulphate, sodium sulphate, sodium citrate and urea.

In another embodiment of the invention, the viscosity modifying agent is selected from a group comprising of xanthan gum, carboxymethylcellulose (CMC), polyvinyl alcohol, bentonite clay, attapulgite clay, sodium polyacrylate and aluminum magnesium silicate.

In another aspect of the invention, there is provided a process for preparation of a herbicide composition, said process comprising mixing an effective amount of halosulfuron methyl; an effective amount of fluthiacetmethyl; an effective amount of at least one additional herbicide compound; and at least one agriculturally acceptable excipient to obtain the herbicide composition.

In one embodiment of the invention, the at least one additional herbicide to be included in the composition is one of 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide, a triazine herbicide, and a synthetic auxin herbicide. In one embodiment of the invention, the 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor is selected from a group comprising topramezone, tembotrione, mesotrione, sulcotrione and tolpyralate.In one embodiment of the invention, the triazine herbicideis selected from a group comprising atrazine, ametryn and metribuzin.In one embodiment, the synthetic auxin herbicide is 2,4-D herbicide.

In one embodiment of the invention, the additional herbicide compound being selected from a group comprising of topramezone, tembotrione, mesotrione, sulcotrione, tolpyralate, atrazine, ametryn, metribuzin, and 2,4-D herbicide.

In an embodiment of the invention, halosulfuron methyl being present in an amount ranging from 1 % to 25% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.2 % to 10% wt/wt of the composition; the at least one additional herbicide compound being present in an amount ranging from 3% to 70% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In another embodiment of the invention, halosulfuron methyl being present in an amount ranging from 2 % to 17.5% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.3 % to 3% wt/wt of the composition; the at least one additional herbicide compound being present in an amount ranging from 3% to 70% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

In yet another embodiment of the invention, a ratio of halosulfuronmethyl:fluthiacetmethyl being in a range of 5:1 to 7:1; a ratio of the at least one additional herbicide compound :fluthiacetmethyl being in a 2:1 to 125:1; and a ratio of the at least one additional herbicide compound :halosulfuron methyl being in a range of 1: 0.040 to 2.5.

In an embodiment, the process may comprise the steps of milling, blending, dissolving, drying, shaping, combinations thereof and the like.

The herbicide compound Halosulfuron Methyl (3-chloro-5-(4,6-dimethoxypirimidin2 ylcarbamoylsulfamoyll-l-metbyl-pyrasole-4-carboxylate) used as one of the active ingredients in the composition of the present invention is a compound belonging to the sulfonylurea class of chemical compounds. It is a post-emergence herbicide for the control of annual grass weeds in cereal crops. Halosulfuron-methyl interferes with acetolactate synthetase (ALS) enzyme, resulting in a rapid cessation of cell division and plant growth in both roots and shoots. Halosulfuron methyl is readily translocated throughout the plant and inhibits cell division. It has the structure as per Formula I:

Formula I

The herbicide compound fluthiacet-methyl (acetic acid[[2-chloro-4-fluoro-5- [(tetrahydro-3-oxo-1H, 3H-[1,3,4]thiadiazolo[3,4-]pyridazin-1-ylidene)amino] phenyl]thio]-methyl ester) is a member of the class of thiadiazolopyridazine. It has a role as an EC 1.3.3.4 (protoporphyrinogen oxidase) inhibitor, a herbicide and an agrochemical. It has the structure as per Formula II:

Formula II

In one embodiment, the additional herbicide to be included in the composition in accordance with the present invention can be selected from the group consisting of but not limiting to topramezone, tembotrione, mesotrione, sulcotrione, tolpyralate, atrazine, ametryn, metribuzin or 2,4-D herbicide.

Topramezone is an aromatic ketone that is phenyl 1H-pyrazol-4-yl ketone in which the pyrazolyl group is substituted at positions 1 and 5 by methyl and hydroxy groups, respectively, and in which the phenyl group is substituted at positions 2, 3, and 4 by methyl, 4,5-dihydro-1,2-oxazol-3-yl, and methylsulfonyl groups, respectively. A potent inhibitor of 4-hydroxyphenylpyruvate dioxygenase (HPPD) that is rapidly metabolised by corn to non-active substances, it is used as a herbicide for the treatment of broadleaf weeds. It has a role as a herbicide, an agrochemical, an EC 1.13.11.27 (4-hydroxyphenylpyruvate dioxygenase) inhibitor and a carotenoid biosynthesis inhibitor. It is a sulfone, a member of isoxazoles, an aromatic ketone and a pyrazolone.

Tembotrione is an aromatic ketone that is 2-benzoylcyclohexane-1,3-dione in which the phenyl group is substituted at positions 2, 3, and 4 by chlorine, (2,2,2-trifluoroethoxy)methyl, and methylsulfonyl groups, respectively. It is a post-emergence herbicide used for the control of a wide range of broad-leaved and grassy weeds in corn and other crops. It has a role as a herbicide, an agrochemical, an EC 1.13.11.27 (4-hydroxyphenylpyruvate dioxygenase) inhibitor and a carotenoid biosynthesis inhibitor. It is a sulfone, a cyclic ketone, an aromatic ketone, a member of monochlorobenzenes, an organofluorine compound, an ether and a beta-triketone.

Mesotrione is an aromatic ketone that is cyclohexa-1,3-dione in which one of the hydrogens at position 2 is substituted by a 4-(methanesulfonyl)-2-nitrobenzoyl group. It has a role as a herbicide, an EC 1.13.11.27 (4-hydroxyphenylpyruvate dioxygenase) inhibitor, a xenobiotic, a carotenoid biosynthesis inhibitor. It is a sulfone, a C-nitro compound, an aromatic ketone and a beta-triketone. It is functionally related to a benzophenone.

Sulcotrione is an aromatic ketone that is cyclohexane-1,3-dione substituted by a 2-chloro-4-(methylsulfonyl)benzoyl group at position 2. It has a role as a herbicide and a carotenoid biosynthesis inhibitor. It is an aromatic ketone, a sulfone, a member of cyclohexanones and a beta-triketone.

Tolpyralate, 1-({1-ethyl-4-[3-(2-methoxyethoxy)-2-methyl-4-(methylsulfonyl)benzoyl]-1H-pyrazol-5-yl}oxy)ethyl methyl carbonate is a benzoylpyrazole that is 1H-pyrazole substituted by an ethyl, 3-(2-methoxyethoxy)-2-methyl-4-(methylsulfonyl)benzoyl, and 1-[(methoxycarbonyl)oxy]ethoxy groups at positions 1, 4 and 5, respectively. It is an aromatic ether, a benzoylpyrazole, a carbonate ester, a member of toluenes, an aromatic ketone and a sulfone.

Atrazine is an herbicide that does not occur naturally. Pure atrazine is an odorless, white powder that is not very volatile, reactive, or flammable and that will dissolve in water. Atrazine is used to kill weeds, primarily on farms, but has also been used on highway and railroad rights-of-way.

Ametryn, a member of the Triazine chemical family, is a herbicide which inhibits photosynthesis and other enzymatic processes. It is used to control broadleaf weeds and annual grasses in pineapple, sugarcane and bananas. It is used on corn and potato crops for general weed control. It is also used as a vine desiccant on dry beans and potatoes.

Metribuzin (4-amino-6-tert-butyl-3-(methylthio)-as-triazin-5 (4H)-one) is a herbicide used both pre- and post-emergence in crops including soy bean, potatoes, tomatoes and sugar cane. It acts by inhibiting photosynthesis by disrupting photosystem II.

2,4-D herbicide is used to control broadleaf weeds. Generally, 2,4-D herbicide comprises 2,4-dichlorophenoxyacetic acid(shortly referred to as 2,4-D) or a salt thereof (shortly referred to as 2,4-D salt) or an amine thereof (shortly referred to as 2,4-D amine) or an ester thereof (shortly referred to as 2,4-D ester). A few non-limiting examples of 2,4-D salt include sodium salt, chlorine salt, lithium salt, etc. A few non-limiting examples of 2,4-D amine are isopropyl amine, triisopropanolamine, diethanolamine, and dimethylamine, with dimethylamine being one of the most widely available 2,4-D amine. A few non-limiting examples of 2,4-D ester include butoxyethyl ester (BEE), ethylhexyl ester (EHE, previously known as iso-octyl ester), ethyl ester, propylene glycol butyl ether ester, methyl ester, isopropyl ester, and butyl ester.

The individual herbicides belonging to different class of chemicals are suitable for controlling limited species of weeds growing with only few crops like soybean,groundnut/Peanut, green gram, and few others. Surprisingly the composition comprising Halosulfuron methyl; in combination with Fluthiacet methyl; and at least one additional herbicide selected from topramezone, tembotrione, mesotrione, sulcotrione, tolpyralate, atrazine, ametryn, metribuzin or 2,4-D herbicideact synergistically that can control array of diverse weeds growing amongst large number of crop plants.

In an embodiment, the herbicidal composition can control and shows broad spectrum activity and upto 99% reduction in weeds. In an embodiment, the herbicidal composition shows atleast 50%, atleast 60%, atleast 70%, atleast 80%, at least 90%, at least 95% or at least 99% reduction in weeds.

In another embodiment, the composition may be used for the control of the growth, proliferation or germination of weeds.

In another embodiment, the present composition can be used to control or suppress all kind of monocots, dicots and sedges weeds. It also control or suppress the annual and perennial weeds. The most common weeds controlled by present inventions are Abutilon indicum, Acalypha indica, Acanthospermumhispidum, Achyranthes aspera, Aerva tomentosa, Ageratum conyzoides, Alhagi camelorum, Amaranthus hybridus, Amaranthus spinosus, Amaranthus viridis, Ammanniabaccifera, Anagallis arvensis, Argemone mexicana, Artemisia nilagiricia, Asphodelus tenuifolius, Avena fatua, Avena ludoviciana, Bidens pilosa, Boerhaaviadiffusa, Boerhaviarepanda, Brachiariamutica, Brassica kaber, Bromus tectorum, Calotropis gigantea, Cannabis sativa, Carthamus axyacantha, Cassia tora, Celosia argentea, Centella asiatica, Chenopodium album, Chenopodium murale, Chloris barbata, Chrozophorarottlerii, Cichorium intybus, Cirsium arvense, Clitoriaternatea, Conicus arvensis, Commelinabenghalensis, Commelina communis, Convolvulus arvensis, Conyza canadensis, Corchorus acutangulus, Coronopusdidymus, Crotalaria serice, Cucumis callosus, Cuscuta campestris, Cuscuta chinensis, Cynodondactylon, Cyanotisaxillaris, Cyperus esculenthus, Cyperus iria, Cyperus rotundus, Dactylocteniumaegyptium, Datura stramonium, Daucus carota, Digera arvensis, Digitariasanguinalis, Dinebraretroflexa, Echinocholacolonum, Echinocholacrusgalli, Eclipta alba, Eichhornia crassipes, Elephantopusscaber, Eleusine indica, Eragrostis major, Euphorbia geniculata, Euphorbia hirta, Fimbristylismiliacea, Fumaria indica, Gynandropsisgynandra, Heliotropium indicum, Indigofera glandulosa, Ipomea aquatica, Lantana camara, Lathyrus aphaca, Launaeaasplenifolia, Launaea nudicaulis, Leucas aspera, Ludwigia parviflora, Marsilea quadrifoliata, Medicago denticulate, Mimosa pudica, Melilotus alba, Melilotus indica, Ocimumcanum, Oenothera biennis, Opuntia dillenil, Orobancheramosa, Oryza longistaminata, Oryza sativa, Oxalis corniculata, Oxalis latifolia, Parthenium hysterophorus, Paspalum sanguinale, Phalaris minor, Phyllanthus niruri, Physalis minima, Polypogonmonspeliensis, Portulaca oleracea, Prosopis juliflora, Rumex dentatus, Saccharum spontaneum, Stearia glauca, Seteria viridis, Sida spinosa, Silene antirrhina, Sisymbrium irio, Solanum nigrum, Solanum surattense, Sonchus oleraceous, Sorghum halepense, Spergula arvensis, SphenocleazeylanicaGaertn, Striga asiatica, Tagetes minuta, Trianthemamonogyna, Trianthemaportulacastrum, Tribulus terrestris, Trigoneliapolycerata, Vernonia cinerea, Vicia sativa and Xanthium strumarium.

In an embodiment, the composition of present invention can be used include GMO (Genetically Modified Organism) and Non GMO traits, hybrids and conventional varieties of Maize (Zea mays), Sorghum (Sorghum bicolor), Pearl millet (Pennisetum glaucum), Sugarcane (Saccharum officinarum), Soybean (Glycin max), Groundnut/Peanut (Arachis hypogaea). Crops are to be understood as also including those crops which have been rendered tolerant to herbicides or classes of herbicides (e.g. ALS-, GS-, EPSPS-, PPO-, ACCase- and HPPD-inhibitors) by conventional methods of breeding or by genetic engineering. An example of a crop that has been rendered tolerant to imidazolinones, e.g. imazamox, by conventional methods of breeding is Clearfield® summer rape (canola). Examples of crops that have been rendered tolerant to herbicides by genetic engineering methods include e.g. glyphosate- and glufosinate-resistant maize varieties commercially available under the trade names RoundupReady® and LibertyLink®. Crops are also to be understood as being those which have been rendered resistant to harmful insects by genetic engineering methods, for example Bt maize (resistant to European corn borer), Bt cotton (resistant to cotton boll weevil) and also Bt potatoes (resistant to Colorado beetle). Examples of Bt maize are the Bt 176 maize hybrids of NK® (Syngenta Seeds). The Bt toxin is a protein that is formed naturally by Bacillus thuringiensis soil bacteria. Examples of toxins, or transgenic plants able to synthesise such toxins, are described in EP-A-451 878, EP-A-374 753, WO 93/07278, WO 95/34656, WO 03/052073 and EP-A-427 529. Examples of transgenic plants comprising one or more genes that code for an insecticidal resistance and express one or more toxins are KnockOut® (maize), Yield Gard® (maize), NuCOTIN33B® (cotton), Bollgard® (cotton), NewLeaf® (potatoes), NatureGard® and Protexcta®. Plant crops or seed material thereof can be both resistant to herbicides and, at the same time, resistant to insect feeding (“stacked” transgenic events). For example, seed can have the ability to express an insecticidal Cry3 protein while at the same time being tolerant to glyphosate.

The present composition can also be applied on non crop land, railway side, roadsides, in golf-courses, lawns, parks, orchards, tea gardens to control or to suppresses unwanted vegetations.

The composition in accordance with the present invention can be used to control harmful plants that are difficult to control and that sprout from rhizomes, rhizomes or other permanent organs.

The composition in accordance with the present invention can be used to controlwidearrayofweedsinnon-cultivatedareas,onpaths,tracksystems, industrial areas ("industrial weed control")or the like.

In another embodiment the composition can be used in known plant crops or tolerant crop plants which are still to be developed, are modified by conventional mutagenesis or are genetically modified for any property in comparison to previously occurring plants.

In an embodiment, the composition of the present invention can be used to delay, reduce and/or avoid the onset of herbicidal resistance.

In another embodiment, the composition of the present invention can be used to control unwanted vegetation in plantation crops, orchards, fallow lands, water bodies, field bunds, and the like.

In another embodiment, the present invention relates to a method of controlling growth of undesired plants by application of a herbicidally effective amount of the composition of the present invention or formulation comprising the same.

In still another embodiment, the present invention relates to a method of preventing undesired plants from infecting crops by applying a herbicidally effective amount of the composition of the present invention or formulation comprising the same.

In yet another embodiment, the present invention relates to use of the composition of the present invention or formulation comprising the same on unwanted vegetation or plants.

In an embodiment the formulation of present invention may be present in the commercial form for example wettable powders, emulsifiable concentrates, dispersions and water-dispersible granules using water for use are optionally diluted in the customary manner with water or other inert substance before use. The manner of use can include mixing the formulation together with water in the tank and the spray mixture, application before or after sowing, apply to the open furrow in which the seeds have been sown, seed dressing or treatment of the germinated seedlings.

In an embodiment the composition of the present invention as such or formulation comprising the same can be applied to the plants (for example harmful plants such as mono-or dicotyledon weeds or undesired crop plants), the seeds(for example grains, seeds or vegetative propagation organs such as tubers or shoot parts with buds)or the area on which the plants grow (for example the area under cultivation).

In an embodiment the composition of the present invention as such or formulation comprising the same can be applied in the pre-sowing(possibly also by incorporation into the soil), pre-emergence or post-emergence methods. Preference is given to use in the early post-sowing pre-emergence process or in the post-emergence process of plantation crops against harmful plants which have not yet emerged or have already emerged. The application can also be integrated into weed management systems, with shared multiple applications for example sequential applications.

In an embodiment, the composition or formulation in accordance with the present invention may be applied via tank mix method or sequential application. The composition may be used pre-emergence or post-emergence of undesired plants. It may be applied on the locus of the plant, including all plant parts, or on the soil or turf of growth. It may be applied before or after the crop seeds are planted.

In an embodiment, the composition lowers the application rate of active compounds on the undesired plants based on the formulation the way of application may be selected from spraying, dusting, scattering, soaking and the like.

In an embodiment, the composition or formulation comprising the same slows down the growth or kills the undesired plants. The herbicide compounds comprised in the composition in synergistic manner intervene the undesired plant's own metabolism and can thus be used to influence plant constituents in a targeted manner and to facilitate the harvest, e.g. by triggering desiccation and stunted growth. Furthermore, they are also suitable for general control and inhibition of undesirable vegetative growth without killing the plants, which can play an important role in many mono cotyledonous and dicotyledon crops, as this can reduce or completely prevent storage.

While the foregoing describes various embodiments of the disclosure, other and further embodiments of the disclosure may be devised without departing from the basic scope thereof. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

The foregoing embodiments are merely illustrative and are not to be taken as limitations upon the scope of the invention. Various changes and modifications to the disclosed embodiments will be apparent to those skilled in the art. Such changes and modifications may be made without departing from the scope of the invention.

The working of some aspects of the invention is demonstrated using the following non-limiting examples.

Biological Examples:
The synergistic pesticide action of the inventive mixtures can be demonstrated by the experiments below. A synergistic effect exists wherever the action of a combination (ready-mix) or tank mix of active ingredient is greater than the sum of the action of each of the components alone. Therefore, a synergistically effective amount or an effective amount of a synergistic composition or combination is an amount that exhibits greater pesticide activity than the sum of the pesticide activities of the individual components.

In the field of agriculture, it is often understood that the term “synergy” is as defined by Colby S.R. in an article entitled “Calculation of the synergistic and antagonistic responses of herbicide combinations” published in the journal Weeds, 1967, 15, p.20-22, incorporated herein by reference in its entirety. The action expected for a given combination of two or three active components can be calculated as follows:

The objective of the present studies was to study the efficacy, residual control and synergism under field conditions.

Sugarcane is long duration crops (12 to 15 months) and weeds are the key constraint in productivity. Farmers expected single shot products which can provide residual control (long duration of control).

Example 1: Bio efficacy against mixed weed flora in Sugarcane crop.
Crop : Sugarcane
Target weeds : mixed weed flora (Sedges, Broad leaf weeds and Grasses)
Number of Treatments: 12 including untreated check.
Plot size : 8 m x 4 m=28 sq.m.
Application time : 15 days after planting, when weeds are at 2 to 4 leaf stage.
Application method : foliar spray with backpack sprayer attached flat fan nozzle.
Water volume : 500 liter per hectare

Observation Methods: Weed control (%): Species wise weed count recorded at 15, 30 and 45 DAA (Days after Application) by using 0.25 m2 (50 cm x 50 cm) quadrant, treatment wise in minimum 5 places randomly selected in the plot. The species wise weed count further grouped into Grasses and Broad Leaf weeds (BLW) and sedges. The data presented here as total weed control (grasses+broadleaf+sedges). The average of each variable was used together with the sum of all the variables per plot to calculate the percentage of control.

Phytotoxicity: The observations on crop safety i.e., phytotoxicity or adverse effect of treatments were recorded at regular intervals. All the visual phytotoxicity symptoms like plant yellowing, leaf scorching, tip burning, bleaching, necrosis, stunting, crinkling, epinasty, hyponasty. Three leaves from each selected plant were scored using 0-10 rating scale, whereas 0=No injury/phytotoxicity, 1=1 to 10% phytotoxicity, 2=11 to 20%, 3=21 to 30%.......10=91 to 100% phytotoxicity. Percent phytotoxicity was determined using following formula.

Table 1: Treatments.
S.no. Treatment compositions Application Rate (gai/h)
T1 Halosulfuron methyl 9%+Fluthiacet methyl 1.6%+Tembotrione 15% 67.5+12+112.5
T2 Halosulfuron methyl 9%+Fluthiacet methyl 1.6%+Mesotrione 12% 67.5+12+90
T3 Halosulfuron methyl 9%+Fluthiacet methyl 1.6% 67.5+12
T4 Halosulfuron methyl 9%+Tembotrione 15% 67.5+112.5
T5 Halosulfuron methyl 9%+Mesotrione 12% 67.5+90
T6 Fluthiacet methyl 1.6%+Tembotrione 15% 12+112.5
T7 Fluthiacet methyl 1.6%+Mesotrione 12% 12+90
T8 Halosulfuron methyl 75% 67.5
T9 Fluthiacet methyl 10.3% 12
T10 Tembotrione 42% 112.5
T11 Mesotrione 48% 90
T12 Untreated Check (UTC) 0

T1 and T2-present composition, T3 to T7-prior art mixtures, T8 to T11-market available products. T10 and T11-add adjuvant@ 2 ml/liter spray volume.

Weed flora composition of trial plot: Sedges (Cyprus rotundus), broad leaf weeds (Trianthemamongyna, Parthenium hysterophorus, Ipomea spp.), grassy weeds (Echinochloacolona, Eragrostis major).

Table 2: Residual control of mixed weed flora.
S.no. 15 DAA 30 DAA 45 DAA
OV EV Ratio Syn OV EV Ratio Syn OV EV Ratio Syn
T1 100.0 84.8 1.18 Y 99.2 80.4 1.23 Y 96.8 67.2 1.44 Y
T2 100.0 84.3 1.19 Y 98.5 79.0 1.25 Y 94.7 65.4 1.45 Y
T3 52.6 68.8 0.77 N 47.2 64.6 0.73 N 41.6 48.6 0.86 N
T4 75.8 71.0 1.07 Y 60.7 65.9 0.92 N 45.9 52.7 0.87 N
T5 72.6 70.1 1.04 Y 61.2 63.5 0.96 N 42.3 50.1 0.84 N
T6 80.2 74.3 1.08 Y 65.8 68.1 0.97 N 48.6 55.8 0.87 N
T7 78.3 73.5 1.06 Y 62.5 65.8 0.95 N 45.4 53.4 0.85 N
T8 40.6 - - - 38.5 - - - 25.8 - - -
T9 47.4 - - - 42.4 - - - 30.7 - - -
T10 51.2 - - - 44.6 - - - 36.2 - - -
T11 49.7 - - - 40.7 - - - 32.8 - - -
T12 0.0 - - - 0.0 - - - 0.0 - - -

OV-observed value (weed control observed in treatment), EV-Expected value (weed control expected/calculated as per the colby’s formula), Ratio-Colby ratio (OV/EV), Syn-synergism (Y-Yes, N-No).

The field trial results show that both the present compositions (T1 and T2) provides synergistic and residual control of mixed weed flora up to 45 DAA (days after application). Initial visual observations show speed of kill of weeds was observed faster in with present compositions (T1 & T2) as compared with all prior art mixtures (T3 to T7) and solo treatments (T8 to T11). At 30 and 45 days, it was observed that both the present compositions (T1 and T2) effectively controls second flush of weeds (newly germinated weeds) and provides long duration of mixed weed flora.

None of the treatments shows any kind of phytotoxicity symptoms on sugarcane.

Example 2: Bio efficacy against mixed weed flora in Sugarcane crop.
Crop : Sugarcane
Target weeds : mixed weed flora (Sedges, Broad leaf weeds and Grasses)
Number of Treatments: 16 including untreated check.
Plot size : 7 m x 5 m=35 sq.m.
Application time : 26 days after planting, when weeds are almost full grown.
Application method : foliar spray with backpack sprayer attached flat fan nozzle.
Water volume : 500 liters per hectare
Observation Methods: as per example 1.

Table 3: Treatments details.
S.no. Treatment compositions Application Rate (gai/h)
T1 Halosulfuron methyl 2.7%+Fluthiacet methyl 0.5%+Atrazine 40% 67.5+12+1000
T2 Halosulfuron methyl 2.7%+Fluthiacet methyl 0.5%+Metribuzin 40% 67.5+12+1000
T3 Halosulfuron methyl 2.7%+Fluthiacet methyl 0.5%+Ametryn 60% 67.5+12+1500
T4 Halosulfuron methyl 9%+Fluthiacet methyl 1.6% 67.5+12
T5 Halosulfuron methyl 2.7%+Atrazine 40% 67.5+1000
T6 Halosulfuron methyl 2.7%+Metribuzin 40% 67.5+1000
T7 Halosulfuron methyl 2.7%+Ametryn 60% 67.5+1500
T8 Fluthiacet methyl 0.5%+Atrazine 40% 12+1000
T9 Fluthiacet methyl 0.5%+Metribuzin 40% 12+1000
T10 Fluthiacet methyl 0.5%+Ametryn 60% 12+1500
T11 Halosulfuron methyl 75% 67.5
T12 Fluthiacet methyl 10.3% 12
T13 Atrazine 50% 1000
T14 Metribuzin 70% 1000
T15 Ametryn 80% 1500
T16 Untreated Check (UTC) 0
T1 to T3-present compositions, T4 to T10-prior art mixtures, T11 to T15-market products.

Weed flora composition of trial plot: The trial plot was dominated by sedges and broad leaf weeds. the weed flora present in trials plots, grassy weeds (Dinebra spp., Brachiaria spp.), broad leaf weeds (Portulaca spp., Physalis minima, Solanum spp., Amaranthus spp.), Sedges (Cyperus rotundus, Cyperus difformis).

Table 4: Synergistic and residual weed control in sugarcane crop.
S.no. 15 DAA 30 DAA 45 DAA
OV EV Ratio Syn Y/N OV EV Ratio Syn Y/N OV EV Ratio Syn Y/N
T1 100 88.8 1.13 Y 100 82.9 1.21 Y 97.2 76.2 1.27 Y
T2 100 89.7 1.12 Y 100 83.6 1.20 Y 96.8 76.8 1.26 Y
T3 100 90.2 1.11 Y 100 84.1 1.19 Y 98.3 75.4 1.30 Y
T4 82.8 79.3 1.04 Y 67.8 70.7 0.96 N 56.8 63.0 0.90 N
T5 80.6 77.4 1.04 Y 65.4 68.9 0.95 N 55.4 61.9 0.89 N
T6 82.4 79.3 1.04 Y 69.2 70.1 0.99 N 56.3 62.8 0.90 N
T7 84.7 80.4 1.05 Y 68.7 71.0 0.97 N 55.8 60.6 0.92 N
T8 75.8 73.0 1.04 Y 66.4 68.1 0.97 N 53.8 59.9 0.90 N
T9 77.3 75.2 1.03 Y 67.5 69.4 0.97 N 57.2 60.8 0.94 N
T10 78.4 76.5 1.02 Y 68.3 70.3 0.97 N 53.8 58.6 0.92 N
T11 58.4 - - - 46.5 - - - 40.7 - - -
T12 50.2 - - - 45.2 - - - 37.6 - - -
T13 45.7 - - - 41.8 - - - 35.8 - - -
T14 50.2 - - - 44.2 - - - 37.2 - - -
T15 52.8 - - - 45.8 - - - 33.6 - - -
T16 0.0 - - - 0.0 - - - 0.0 - - -

All the present compositions (T1 to T3) provides synergistic and residual control of mixed weed flora up to 45 DAA (days after application) by controlling subsequent weed flushes.All the present compositions (T1 to T3) were also found safe to the sugarcane crop.

Example 3: Bio efficacy against mixed weed flora in Sugarcane crop.
Crop : Sugarcane
Target weeds : mixed weed flora (Sedges, Broad leaf weeds and Grasses)
Number of Treatments: 12 including untreated check.
Plot size : 10 m x 4 m=40 sq.m.
Application time : 45 days after planting, as directed application between two rows and weeds are full grown.
Application method : foliar spray with backpack sprayer attached flat fan nozzle.
Water volume : 500 liters per hectare
Observation Methods: as per example 1.

Table 5: Treatments.
S.no. Treatment compositions Application Rate (gai/h)
T1 Halosulfuron methyl 9%+Fluthiacet methyl 1.6%+Topramezone 4% 67.5+12+30
T2 Halosulfuron methyl 9%+Fluthiacet methyl 1.6%+Tolpyralate 4% 67.5+12+30
T3 Halosulfuron methyl 9%+Fluthiacet methyl 1.6% 67.5+12
T4 Halosulfuron methyl 18%+Topramezone 8% 67.5+30
T5 Halosulfuron methyl 18%+Tolpyralate 8% 67.5+30
T6 Fluthiacet methyl 10.3% EC+Topramezone 33.6% 12+30
T7 Fluthiacet methyl 10.3% EC+Tolpyralate 40% 12+30
T8 Halosulfuron methyl 75% 67.5
T9 Fluthiacet methyl 10.3% 12
T10 Topramezone 33.6% 30
T11 Tolpyralate 40% 30
T12 Untreated Check (UTC) 0

T1 and T2-present compositions, T3 to T7-prior art mixtures. T10 and T11-add adjuvants as tank mix.

Weed flora composition of trial plot: grassy weeds (Echinochloacolona, Dactyloctenium spp.), broad leaf weeds (Trianthemaportulacastrum, Commelina benghalensis, Colvolvulus spp.), Sedge (Cyperus rotundus).

Table 6: Weed control
S.no. 15 DAA 30 DAA 45 DAA
OV EV Ratio Syn OV EV Ratio Syn OV EV Ratio Syn
T1 99.8 91.0 1.10 Y 97.2 88.6 1.10 Y 93.8 80.8 1.16 Y
T2 100 93.1 1.07 Y 98.7 90.9 1.09 Y 94.6 84.3 1.12 Y
T3 74.5 72.0 1.03 Y 65.8 68.7 0.96 N 56.8 59.3 0.96 N
T4 86.7 83.5 1.04 Y 78.2 80.2 0.97 N 67.8 70.6 0.96 N
T5 88.2 87.4 1.01 Y 83.2 84.2 0.99 N 74.2 76.0 0.98 N
T6 83.6 82.4 1.02 Y 76.7 78.9 0.97 N 66.5 69.1 0.96 N
T7 88.6 86.5 1.02 Y 81.4 83.2 0.98 N 71.2 74.8 0.95 N
T8 48.9 - - - 45.8 - - - 37.8 - - -
T9 45.2 - - - 42.3 - - - 34.6 - - -
T10 67.8 - - - 63.5 - - - 52.8 - - -
T11 75.3 70.8 61.4
T12 0.0 - - - 0.0 - - - 0.0 - - -

Both the present compositions (T1 and T2) provides synergistic and residual control of mixed weed flora up to 45 DAA (days after application).

Example 4: Bio efficacy against mixed weed flora in Mango orchard.
Crop : Mango orchard
Target weeds : mixed weed flora (Sedges, Broad leaf weeds and Grasses)
Number of Treatments: 12 including untreated check.
Plot size : 10 m x 5 m=50 sq.m.
Application time : Full grown weeds.
Application method : foliar spray with backpack sprayer attached flat fan nozzle.
Water volume : 500 liter per hectare
Observation Methods:Weed control (%): as per example 1.

Table 7: Treatments.
S.no. Treatment compositions Application Rate (gai/h)
T1 Halosulfuron methyl 15%+Fluthiacet methyl 2.5%+Sulcotrione 24% 75+12.5+120
T2 Halosulfuron methyl 3%+Fluthiacet methyl 0.5%+2,4-D herbicide (particularly, 2,4-D Sodium salt) 48% 75+12.5+1200
T3 Halosulfuron methyl 15%+Fluthiacet methyl 2.5% 75+12.5
T4 Halosulfuron methyl 15%+Sulcotrione 24% 75+120
T5 Halosulfuron methyl 3%+2,4-D Sodium salt 48% 75+1200
T6 Fluthiacet methyl 2.5%+Sulcotrione 24% 12.5+120
T7 Fluthiacet methyl 0.5%+2,4-D Sodium salt 48% 12.5+1200
T8 Halosulfuron methyl 75% 75
T9 Fluthiacet methyl 10.3% 12.5
T10 Sulcotrione 25% 120
T11 2,4-D Sodium salt 80% 1200
T12 Untreated Check (UTC) 0

T1 and T2-present composition, T3 to T7-prior art mixtures, T8 to T11-solo products.

Table 8: Weed control
S.no. 15 DAA 30 DAA 45 DAA
OV EV Ratio Syn OV EV Ratio Syn OV EV Ratio Syn
T1 100.0 91.7 1.09 Y 100.0 87.6 1.14 Y 100.0 76.6 1.30 Y
T2 100.0 90.9 1.10 Y 98.8 86.4 1.14 Y 96.3 73.0 1.32 Y
T3 75.8 73.8 1.03 Y 66.2 67.7 0.98 N 50.2 54.5 0.92 N
T4 86.2 83.2 1.04 Y 75.6 78.3 0.97 N 63.7 66.2 0.96 N
T5 82.5 81.8 1.01 Y 73.2 76.3 0.96 N 55.8 60.9 0.92 N
T6 86.7 84.2 1.03 Y 76.5 78.0 0.98 N 59.2 64.5 0.92 N
T7 84.2 82.8 1.02 Y 73.4 75.9 0.97 N 51.2 58.9 0.87 N
T8 47.3 - - - 43.6 - - - 34.2 - - -
T9 50.2 - - - 42.8 - - - 30.8 - - -
T10 68.2 - - - 61.5 - - - 48.7 - - -
T11 65.4 57.9 40.6
T12 0.0 - - - 0.0 - - - 0.0 - - -

Both the present compositions (T1 and T2) provides synergistic and residual control of mixed weed flora up to 45 DAA (days after application).

Example 5: Composition Comprising Halosulfuron methyl, Fluthiacet methyl and Tembotrione
Since in Example 1 illustrates that Halosulfuron methyl in an amount 9%+Fluthiacet methyl in an amount of 1.6%+Tembotrionein an amount of 15% was found to be synergistic, a herbicidal composition in the form of a suspension concentrate was prepared as per Table 7.

Table 9:
Chemical composition Function Percent (w/w)
Halosulfuron methyl a.i Active Ingredient 9.00
Fluthiacet methyl a.i. Active Ingredient 1.60
Tembotrionea.i. Active Ingredient 15.00
Isoxadifen-ethyl Safener 7.50
Polyalkyleneoxide modified trisiloxane super wetting-spreading-penetrating agent 5.00
Ethylene-propylene oxide block copolymer Dispersing agent 2.87
Sodium naphthalene sulphonate formaldehyde condensates Dispersing agent 2.23
Aluminum magnesium silicate Suspending agent 0.23
Polydimethylsiloxane Anti foaming agent 0.24
1,2-benzisothiazolin-3(2H)-one Preservative 0.12
1,2-Propylene glycol Anti freezing agent 4.76
Xanthan gum Thickner 0.14
Diluent water Solvent 51.31
Total 100.00

The process of preparing the composition as provided in Table 9 includes the following steps:

Step 1: Preparation of Gum Solution: Charge a first part of Xanthan gum and 1,2-benzisothiazoline-3-one into water and homogenize. It should be made 12-18 hour prior to use.

Step 2: Charge DM water and 1,2-Propylene glycol into designated vessel and mix thoroughly.

Step 3: Add Ethylene-propylene oxide block copolymer, Sodium naphthalene sulphonate formaldehyde condensates and Aluminium magnesium silicate into the vessel having water and homogenise the contents for 45 to 60 minutes using high shear homogeniser.

Step 4: Then add Halosulfuron methyl technical, Fluthiacet methyl technical, Tembotrione technical and Isoxadifen ethyl to this premix slowly and homogenised to get uniform slurry ready for grinding.

Step 5: Before grinding half the quantity of Polydimethylsiloxane was added and then material was subjected to grinding in Dyno mill till desired particle size is achieved.

Step 6: Add remaining Polydimethyl siloxane after grinding process completes and before sampling for in process analysis.

Step 7: Finally add remaining Xanthum gum solution and polyalkyleneoxide modified trisiloxane to this formulation and homogenized for 30 minutes.

The composition as prepared above was tested storage stability in laboratory for a period of 14 days and the results of the storage test is provided in Table 10.

Table 10:
Parameters Specification
(in house) Initial Stability at 54±2 0C Stability at 0±2 0C
Halosulfuron methyl a.i 8.55% to 9.90% 9.12 9.11 9.12
Fluthiacet methyl a.i. 1.52% to 1.76% 1.67 1.65 1.67
Tembotrionea.i. 14.25% to 15.75% 15.19 15.17 15.19
Halosulfuron methyl suspensibility 80% Min. 92.23 92.12 92.23
Fluthiacet methyl suspensibility 80% Min. 91.45 90.98 91.45
Tembotrione suspensibility 80% Min. 93.36 92.72 93.36
pH range (1% aq. Suspension) 5 to 8 5.70 5.72 5.70
Viscosity at spindle no.62,20 rpm 300 to 800 (cP) 410.0 412.00 412.00
Persistent foam ml (after 1 minute) max. 60 Nil Nil Nil

Thus, the composition was found to be stable for 14 days under laboratory conditions. Since the composition was found to be stable for 14 days under laboratory conditions, stability of the composition was tested under room temperature and the results thus obtained are provided in Table 11.

Table 11:
Parameters Specification (in house) Initial 1 month 6 month 12 month
Halosulfuron methyl a.i 8.55% to 9.90% 9.12 9.12 9.11 9.09
Fluthiacet methyl a.i. 1.52% to 1.76% 1.67 1.67 1.66 1.65
Tembotrionea.i. 14.25% to 15.75% 15.19 15.19 15.17 15.15
Halosulfuron methyl suspensibility 80% Min. 92.23 92.22 92.05 91.89
Fluthiacet methyl suspensibility 80% Min. 91.45 91.43 91.35 91.14
Tembotrione suspensibility 80% Min. 93.36 93.35 93.12 92.75
pH range (1% aq. Suspension) 5 to 8 5.70 5.70 5.72 5.72
Viscosity at spindle no.62,20 rpm 300 to 800(cP) 410.00 411.00 412.00 415.00
Persistent foam ml (after 1 minute) max. 60 Nil Nil Nil Nil

The composition comprising Halosulfuron methyl 9%+Fluthiacet methyl 1.6%+Tembotrione 15% SC meets the all inhouse specifications for storage stability studies in laboratory (at 54±2o C & At 0±2o C for 14 days) and room temperature (for 12 months).

Example 6: Composition Comprising Halosulfuron methyl, Fluthiacet methyl and Mesotrione
Since in Example 1 illustrates that Halosulfuron methyl in an amount 9%+Fluthiacet methyl in an amount of 1.6%+Mesotrione in an amount of 12% was found to be synergistic, a herbicidal composition in the form of a suspension concentrate was prepared as per Table 12.

Table 12:
Chemical composition Function Percent (w/w)
Halosulfuron methyl a.i Active Ingredient 9.00
Fluthiacet methyl a.i. Active Ingredient 1.60
Mesotrionea.i. Active Ingredient 12.00
Isoxadifen-ethyl Safener 7.50
Polyalkyleneoxide modified trisiloxane super wetting-spreading-penetrating agent 5.00
Ethylene-propylene oxide block copolymer Dispersing agent 2.87
Sodium naphthalene sulphonate formaldehyde condensates Dispersing agent 2.23
Aluminum magnesium silicate Suspending agent 0.23
Polydimethylsiloxane Anti foaming agent 0.24
1,2-benzisothiazolin-3(2H)-one Preservative 0.12
1,2-Propylene glycol Anti freezing agent 4.76
Xanthan gum Thickner 0.14
Diluent water Solvent 54.31
Total 100.00

The process of preparing the composition as provided in Table 12 includes the following steps:

Step 1: Preparation of Gum Solution: Charge a first part of Xanthan gum and 1,2-benzisothiazoline-3-one into water and homogenize. It should be made 12-18 hour prior to use.

Step 2: Charge DM water and 1,2-Propylene glycol into designated vessel and mix thoroughly.

Step 3: Add Ethylene-propylene oxide block copolymer, Sodium naphthalene sulphonate formaldehyde condensates and Aluminium magnesium silicate into the vessel having water and homogenise the contents for 45 to 60 minutes using high shear homogeniser.

Step 4: Then add Halosulfuron methyl technical, Fluthiacet methyl technical, Mesotrionetechnical and Isoxadifen ethyl to this premix slowly and homogenised to get uniform slurry ready for grinding.

Step 5: Before grinding half the quantity of Polydimethylsiloxane was added and then material was subjected to grinding in Dyno mill till desired particle size is achieved.

Step 6: Add remaining Polydimethyl siloxane was added after grinding process completes and before sampling for in process analysis.

Step 7: Finally add remaining Xanthum gum solution and polyalkyleneoxide modified trisiloxane to this formulation and homogenized for 30 minutes.

Example 7: Composition Comprising Halosulfuron methyl, Fluthiacet methyl and Topramezone
Since in Example 3 illustrates that Halosulfuron methyl in an amount 9%+Fluthiacet methyl in an amount of 1.6%+ Topramezone in an amount of 4% was found to be synergistic, a herbicidal composition in the form of a suspension concentrate was prepared as per Table 13.

Table 13:
Chemical composition Function Percent (w/w)
Halosulfuron methyl a.i Active Ingredient 9.00
Fluthiacet methyl a.i. Active Ingredient 1.60
Topramezone a.i. Active Ingredient 4.00
Polyalkyleneoxide modified trisiloxane super wetting-spreading-penetrating agent 5.00
Benzenesulfonic acid, hydroxy-, polymer with formaldehyde, phenol and urea, sodium salt Dispersing agent 3.78
Naphthalenesulfonic acid, polymer with formaldehyde, sodium salt Dispersing agent 1.87
Dioctyl sodium sulfosuccinate Wetting agent 2.21
Precipitated silica Suspending agent 2.32
Polydimethylsiloxane Anti-foaming agent 0.27
1,2-Propylene glycol Anti-freezing agent 7.21
1,2-benzisothiazolin-3(2H)-one Preservative 0.18
Xanthan gum Thickner 0.28
DM Water Solvent 62.28
Total 100.00

The process for preparing the composition provided above comprises:

Step 1: Preparation of Gum Solution: Charge a first part of Xanthan gum and 1,2-benzisothiazoline-3-one water and homogenize. It should be made 12-18 hour prior to use.

Step 2: Charge DM water and 1,2-Propylene glycol into designated vessel and mix thoroughly.

Step 3: Add Benzenesulfonic acid, hydroxy-, polymer with formaldehyde, phenol and urea, sodium salt, Naphthalenesulfonic acid, polymer with formaldehyde, sodium saltinto the vessel having water and homogenise the contents for 45 to 60 minutes using high shear homogeniser.

Step 4: Then add Halosulfuron methyl technical, Fluthiacet methyl technical, Topramezone technical and Dioctyl sodium sulfosuccinateto this premix slowly and homogenised to get uniform slurry ready for grinding.

Step 5: Before grinding half the quantity of Polydimethylsiloxane was and precipitated silica added and then material was subjected to grinding in Dyno mill till desired particle size is achieved.

Step 6: Add remaining Polydimethyl siloxane after grinding process completes and before sampling for in process analysis.

Step 7: Finally add Xanthum gum solution and polyalkyleneoxide modified trisiloxane to this formulation and homogenized for 30 minutes.

The composition as prepared above was tested storage stability in laboratory for a period of 14 days and the results of the storage test is provided in Table 14.

Table 14:
Parameters Specification
(in house) Initial Stability at 54±2 0C Stability at 0±2 0C
Halosulfuron methyl a.i 8.55% to 9.90% 9.21 9.19 9.21
Fluthiacet methyl a.i. 1.52% to 1.76% 1.68 1.65 1.68
Topramezone a.i. 3.80% to 4.40% 4.14 4.13 4.14
Halosulfuron methyl suspensibility (%) 80% Min. 92.45 92.27 92.45
Fluthiacet methyl suspensibility (%) 80% Min. 91.32 91.30 91.32
Topramezone suspensibility (%) 80% Min. 91.87 91.43 91.87
pH range (1% aq. Suspension) 5 to 8 5.30 5.35 5.30
Viscosity at spindle no.62,20 rpm (cP) 300 to 800 390 395 390
Persistent foam ml (after 1 minute) max. 60 Nil Nil Nil

Thus, the composition was found to be stable for 14 days under laboratory conditions. Since the composition was found to be stable for 14 days under laboratory conditions, stability of the composition was tested under room temperature and the results thus obtained are provided in Table 15.

Table 15:
Parameters Specification (in house) Initial 1 month 6 month 12 month
Halosulfuron methyl a.i 8.55% to 9.90% 9.21 9.21 9.20 9.18
Fluthiacet methyl a.i. 1.52% to 1.76% 1.68 1.68 1.66 1.64
Topramezone a.i. 3.80% to 4.40% 4.14 4.14 4.13 4.11
Halosulfuron methyl suspensibility (%) 80% Min. 92.45 92.43 92.12 91.89
Fluthiacet methyl suspensibility (%) 80% Min. 91.32 91.29 91.09 90.78
Topramezone suspensibility (%) 80% Min. 91.87 91.79 91.45 91.34
pH range (1% aq. Suspension) 5 to 8 5.30 5.31 5.31 5.32
Viscosity at spindle no.62,20 rpm (cP) 300 to 800 390 392 395 399
Persistent foam ml (after 1 minute) max. 60 Nil Nil Nil Nil

The composition comprising Halosulfuron methyl 9%+Fluthiacet methyl 1.6%+ Topramezone 4% SC meets the all inhouse specifications for storage stability studies in laboratory (at 54±2o C & At 0±2o C for 14 days) and room temperature (for 12 months).

Example 8: Composition Comprising Halosulfuron methyl, Fluthiacet methyl and Tolpyralate
Since in Example 3 illustrates that Halosulfuron methyl in an amount 9%+Fluthiacet methyl in an amount of 1.6%+Tolpyralate in an amount of 4% was found to be synergistic, a herbicidal composition in the form of a suspension concentrate was prepared as per Table 16.

Table 16:
Chemical composition Function Percent (w/w)
Halosulfuron methyl a.i Active Ingredient 9.00
Fluthiacet methyl a.i. Active Ingredient 1.60
Tolpyralatea.i. Active Ingredient 4.00
Polyalkyleneoxide modified trisiloxane super wetting-spreading-penetrating agent 5.00
Benzenesulfonic acid, hydroxy-, polymer with formaldehyde, phenol and urea, sodium salt Dispersing agent 3.78
Naphthalenesulfonic acid, polymer with formaldehyde, sodium salt Dispersing agent 1.87
Dioctyl sodium sulfosuccinate Wetting agent 2.21
Precipitated silica Suspending agent 2.32
Polydimethylsiloxane Anti-foaming agent 0.27
1,2-Propylene glycol Anti-freezing agent 7.21
1,2-benzisothiazolin-3(2H)-one Preservative 0.18
Xanthan gum Thickner 0.28
DM Water Solvent 62.28
Total 100.00

The process for preparing the composition provided above comprises:

Step 1: Preparation of Gum Solution: Charge a first part of Xanthan gum and 1,2-benzisothiazoline-3-one water and homogenize. It should be made 12-18 hour prior to use.

Step 2: Charge DM water and 1,2-Propylene glycol into designated vessel and mix thoroughly.

Step 3: Add Benzenesulfonic acid, hydroxy-, polymer with formaldehyde, phenol and urea, sodium salt, Naphthalenesulfonic acid, polymer with formaldehyde, sodium salt into the vessel having water and homogenise the contents for 45 to 60 minutes using high shear homogeniser.

Step 4: Then add Halosulfuron methyl technical, Fluthiacet methyl technical, Tolpyralatetechnical and Dioctyl sodium sulfosuccinateto this premix slowly and homogenised to get uniform slurry ready for grinding.

Step 5: Before grinding half the quantity of Polydimethylsiloxane was and precipitated silica added and then material was subjected to grinding in Dyno mill till desired particle size is achieved.

Step 6: Add remaining Polydimethyl siloxane after grinding process completes and before sampling for in process analysis.

Step 7: Finally add Xanthum gum solution and polyalkyleneoxide modified trisiloxane to this formulation and homogenized for 30 minutes.

Example 9: Composition Comprising Halosulfuron methyl, Fluthiacet methyl and Atrazine
Since in Example 2 illustrates that Halosulfuron methyl in an amount 2.7%+Fluthiacet methyl in an amount of 0.5%+ Atrazine in an amount of 40% was found to be synergistic, a herbicidal composition in the form of Wettable Granule was prepared as per Table 17.

Table 17:
Chemical composition Function Percent (w/w)
Halosulfuron methyl a.i Active Ingredient 2.70
Fluthiacet methyl a.i. Active Ingredient 0.50
Atrazine a.i. Active Ingredient 40.00
Modified Sodium lignosulphonate Dispersing Agent 6.89
Modified polyacrylate copolymer Dispersing Agent 4.67
Sodium isopropyl naphthalene sulfonate Wetting Agent 3.43
Polydimethylsiloxane Antifoaming Agent 0.50
Corn Starch Binding Agent 20.22
China clay Filler 21.09
Total 100.00

The process for preparing the composition as provided above was prepared in accordance with the following procedure:

Step 1: Charge the China clay, Corn starch, Polydimethylsiloxane, Sodium isopropyl naphthalene sulfonate, Modified polyacrylate copolymer and Modified Sodium lignosulphonate blend into a ribbon or premix blender and homogenization for 30 minutes.

Step 2: Now charge Halosulfuron methyl technical, Fluthiacet methyl technical and Atrazine technical and again homogenize for 30 minutes and now this Pre-blended material is then grinded through Jet mill/ air classifier mills. Finely grinded material is blended in post blender till it becomes homogeneous. (for approx 1.5 hr).

Step 3: Finely grinded powder is mixed with water to form extrudable dough.

Step 4: Dough is passed through extruder to get granules of required size.

Step 5: Wet granules are passed through Fluidized bed drier to remove extra water added and further graded using vibrating screens.

The composition as prepared above was tested storage stability in laboratory for a period of 14 days and the results of the storage test is provided in Table 18.

Table 18:
Parameters Specification
(in house) Initial Stability at 54±2 0C Stability at 0±2 0C
Halosulfuron methyl a.i. 2.57% to 2.97% 2.76 2.75 2.76
Fluthiacet methyl a.i. 0.48% to 0.55% 0.54 0.53 0.54
Atrazine a.i. 38.00% to 42.00% 40.47 40.45 40.47
Halosulfuron methyl suspensibility (%) 70 91.36 91.12 91.36
Fluthiacet methyl suspensibility (%) 70 88.98 88.45 88.98
Atrazine suspensibility (%) 70 94.25 94.02 94.25
pH range (1% aq. Suspension) 5 to 9 6.23 6.25 6.23
Wettability Max 60 s 20 22 20
Wet Sieve (75 microns) Mini 98.5% 99.75 99.64 99.75
Moisture Content Max 3.0% 1.8 1.7 1.8
Persistent foam ml (after 1 minute) max. 60 20 22 20

Thus, the composition was found to be stable for 14 days under laboratory conditions. Since the composition was found to be stable for 14 days under laboratory conditions, stability of the composition was tested under room temperature and the results thus obtained are provided in Table 19.

Table 19:
Parameters Specification (in house) Initial 1 month 6 month 12 month
Halosulfuron methyl a.i. 2.57% to 2.97% 2.76 2.76 2.75 2.73
Fluthiacet methyl a.i. 0.48% to 0.55% 0.54 0.54 0.53 0.52
Atrazine a.i. 38.00% to 42.00% 40.47 40.47 40.46 40.23
Halosulfuron methyl suspensibility (%) 70 91.36 91.35 91.32 91.12
Fluthiacet methyl suspensibility (%) 70 88.98 88.96 88.93 88.46
Atrazine suspensibility (%) 70 94.25 94.24 94.04 93.78
pH range (1% aq. Suspension) 5 to 9 6.23 6.23 6.24 6.25
Wettability Max 60 s 20 20 22 24
Wet Sieve (75 microns) Mini 98.5% 99.75 99.75 99.70 99.70
Moisture Content Max 3.0% 1.8 1.8 1.7 1.7
Persistent foam ml (after 1 minute) max. 60 20 20 22 25

The composition comprising Halosulfuron methyl 2.7%+Fluthiacet methyl 0.5%+Atrazine 40% WG meets the all inhouse specifications for storage stability studies in laboratory (at 54±2o C & At 0±2o C for 14 days) and room temperature (for 12 months).

Example 10: Composition Comprising Halosulfuron methyl, Fluthiacet methyl and Metribuzin
Since in Example 2 illustrates that Halosulfuron methyl in an amount 2.7%+Fluthiacet methyl in an amount of 0.5%+Metribuzin in an amount of 40% was found to be synergistic, a herbicidal composition in the form of Wettable Granule was prepared as per Table 20.

Table 20:
Chemical composition Function Percent (w/w)
Halosulfuron methyl a.i Active Ingredient 2.70
Fluthiacet methyl a.i. Active Ingredient 0.50
Metribuzin a.i. Active Ingredient 40.00
Modified Sodium lignosulphonate Dispersing Agent 6.89
Modified polyacrylate copolymer Dispersing Agent 4.67
Sodium isopropyl naphthalene sulfonate Wetting Agent 3.43
Polydimethylsiloxane Antifoaming Agent 0.50
Corn Starch Binding Agent 20.22
China clay Filler 21.09
Total 100.00

The process for preparing the composition as provided above was prepared in accordance with the following procedure:

The process for preparing the composition as provided above was prepared in accordance with the following procedure:

Step 1: Charge the China clay, Corn starch, Polydimethylsiloxane, Sodium isopropyl naphthalene sulfonate, Modified polyacrylate copolymer and Modified Sodium lignosulphonate blend into a ribbon or premix blender and homogenization for 30 minutes.

Step 2: Now charge Halosulfuron methyl technical, Fluthiacet methyl technical and Metribuzin technical and again homogenize for 30 minutes and now this Pre-blended material is then grinded through Jet mill/ air classifier mills. Finely grinded material is blended in post blender till it becomes homogeneous. (for approx 1.5 hr).

Step 3: Finely grinded powder is mixed with water to form extrudable dough.

Step 4: Dough is passed through extruder to get granules of required size.

Step 5: Wet granules are passed through Fluidized bed drier to remove extra water added and further graded using vibrating screens.

Example 11: Composition Comprising Halosulfuron methyl, Fluthiacet methyl and Ametryn
Since in Example 2 illustrates that Halosulfuron methyl in an amount 2.7%+Fluthiacet methyl in an amount of 0.5%+Ametryn in an amount of 60% was found to be synergistic, a herbicidal composition in the form of Wettable Granule was prepared as per Table 21.

Table 21:
Chemical composition Function Percent (w/w)
Halosulfuron methyl a.i Active Ingredient 2.70
Fluthiacet methyl a.i. Active Ingredient 0.50
Ametryna.i. Active Ingredient 60.00
sodium salt of naphthalene sulfonate condensate Dispersing Agent 8.21
Sodium Polycarboxylate Dispersing Agent 5.25
Diisobutyl naphthalene sulfonate, sodium salt Wetting Agent 2.73
Polydimethylsiloxane Antifoaming Agent 0.50
Lactose anhydrous Binding Agent 9.45
Kaolin Clay Filler 10.66
Total 100.00

The process for preparing the composition as provided above was prepared in accordance with the following procedure:

Step 1: Charge the Kaolin clay, Lactose anhydrous, Polydimethylsiloxane, sodium salt of naphthalene sulfonate condensate, Sodium Polycarboxylate, and Diisobutyl naphthalene sulfonate, sodium saltinto a ribbon or premix blender and homogenization for 30 minutes.

Step 2: Now charge Halosulfuron methyl technical, Fluthiacet methyl technical and Ametryntechnical and again homogenize for 30 minutes and now this Pre-blended material is then grinded through Jet mill/ air classifier mills. Finely grinded material is blended in post blender till it becomes homogeneous. (for approx 1.5 hr).

Step 3: Finely grinded powder is mixed with water to form extrudable dough.

Step 4: Dough is passed through extruder to get granules of required size.

Step 5: Wet granules are passed through Fluidized bed drier to remove extra water added and further graded using vibrating screens.

The composition as prepared above was tested storage stability in laboratory for a period of 14 days and the results of the storage test is provided in Table 22.

Table 22:
Parameters Specification
(in house) Initial Stability at 54±2 0C Stability at 0±2 0C
Halosulfuron methyl a.i. 2.57% to 2.97% 2.75 2.73 2.75
Fluthiacet methyl a.i. 0.48% to 0.55% 0.54 0.52 0.54
Ametryna.i. 57.00% to 63.00% 60.37 60.35 60.37
Halosulfuron methyl suspensibility (%) 70 91.39 91.12 91.39
Fluthiacet methyl suspensibility (%) 70 88.91 88.78 88.91
Ametryn suspensibility (%) 70 91.43 91.23 91.43
pH range (1% aq. Suspension) 5 to 9 6.21 6.22 6.21
Wettability Max 60 s 22 25 22
Wet Sieve (75 microns) Mini 98.5% 99.23 99.19 99.23
Moisture Content Max 3.0% 1.9 1.8 1.9
Persistent foam ml (after 1 minute) max. 60 20 24 20

Thus, the composition was found to be stable for 14 days under laboratory conditions. Since the composition was found to be stable for 14 days under laboratory conditions, stability of the composition was tested under room temperature and the results thus obtained are provided in Table 23.

Table 23:
Parameters Specification (in house) Initial 1 month 6 month 12 month
Halosulfuron methyl a.i. 2.57% to 2.97% 2.75 2.75 2.74 2.73
Fluthiacet methyl a.i. 0.48% to 0.55% 0.54 0.54 0.53 0.52
Ametryna.i. 57.00% to 63.00% 60.37 60.37 60.35 60.29
Halosulfuron methyl suspensibility (%) 70 91.39 91.37 91.35 91.12
Fluthiacet methyl suspensibility (%) 70 88.91 88.89 88.85 88.69
Ametryn suspensibility (%) 70 91.43 91.42 91.39 91.18
pH range (1% aq. Suspension) 5 to 9 6.21 6.21 6.22 6.23
Wettability Max 60 s 22 22 23 24
Wet Sieve (75 microns) Mini 98.5% 99.23 99.23 99.19 99.15
Moisture Content Max 3.0% 1.9 1.9 1.8 1.8
Persistent foam ml (after 1 minute) max. 60 20 20 22 25

The composition comprising Halosulfuron methyl 2.7%+Fluthiacet methyl 0.5%+Ametryn 60% WG meets the all inhouse specifications for storage stability studies in laboratory (at 54±2o C & At 0±2o C for 14 days) and room temperature (for 12 months).

Example 12: Composition Comprising Halosulfuron methyl, Fluthiacet methyl and Sulcotrione
Since Example 4 illustrates that Halosulfuron methyl in an amount of 15% + Fluthiacet methyl in an amount of 2.5%+Sulcotrionein an amount of 24% was found to be synergistic, a herbicidal composition in the form of Wettable Granule was prepared as per Table 24.

Table 24:
Chemical composition Function Percent (w/w)
Halosulfuron methyl a.i Active Ingredient 15
Fluthiacet methyl a.i. Active Ingredient 2.5
Sulcotrionea.i. Active Ingredient 24.00
sodium salt of naphthalene sulfonate condensate Dispersing Agent 8.21
Sodium Polycarboxylate Dispersing Agent 5.25
Diisobutyl naphthalene sulfonate, sodium salt Wetting Agent 2.73
Polydimethylsiloxane Antifoaming Agent 0.50
Lactose anhydrous Binding Agent 9.45
Kaolin Clay Filler 32.36
Total 100.00

The process for preparing the composition as provided above was prepared in accordance with the following procedure:

Step 1: Charge the Kaolin clay, Lactose anhydrous, Polydimethylsiloxane, sodium salt of naphthalene sulfonate condensate, Sodium Polycarboxylate, and Diisobutyl naphthalene sulfonate, sodium saltinto a ribbon or premix blender and homogenization for 30 minutes.

Step 2: Now charge Halosulfuron methyl technical, Fluthiacet methyl technical and Sulotrion etechnical and again homogenize for 30 minutes and now this Pre-blended material is then grinded through Jet mill/ air classifier mills. Finely grinded material is blended in post blender till it becomes homogeneous. (for approx 1.5 hr).

Step 3: Finely grinded powder is mixed with water having silicone antifoam to form extrudable dough.

Step 4: Dough is passed through extruder to get granules of required size.

Step 5: Wet granules are passed through Fluidized bed drier to remove extra water added and further graded using vibrating screens.

Example 13: Composition Comprising Halosulfuron methyl, Fluthiacet methyl and 2,4-D herbicide
Since Example 4 illustrates that Halosulfuron methyl in an amount of 3% + Fluthiacet methyl in an amount of 0.5%+2,4-D herbicide in an amount of 48% was found to be synergistic, a herbicidal composition in the form of Wettable Granule was prepared as per Table 25.

Table 25:
Chemical composition Function Percent (w/w)
Halosulfuron methyl a.i Active Ingredient 3
Fluthiacet methyl a.i. Active Ingredient 0.5
2,4-D herbicide a.i. (particularly 2,4-D Sodium salt) Active Ingredient 48.00
sodium salt of naphthalene sulfonate condensate Dispersing Agent 8.21
Sodium Polycarboxylate Dispersing Agent 5.25
Diisobutyl naphthalene sulfonate, sodium salt Wetting Agent 2.73
Polydimethylsiloxane Antifoaming Agent 0.50
Lactose anhydrous Binding Agent 9.45
Kaolin Clay Filler 8.36
Total 100.00

The process for preparing the composition as provided above was prepared in accordance with the following procedure:

Step 1: Charge the Kaolin clay, Lactose anhydrous, Polydimethylsiloxane, sodium salt of naphthalene sulfonate condensate, Sodium Polycarboxylate, and Diisobutyl naphthalene sulfonate, sodium saltinto a ribbon or premix blender and homogenization for 30 minutes.

Step 2: Now charge Halosulfuron methyl technical, Fluthiacet methyl technical and 2,4-D herbicide a.i. (particularly 2,4-D Sodium salt) technical and again homogenize for 30 minutes and now this Pre-blended material is then grinded through Jet mill/ air classifier mills. Finely grinded material is blended in post blender till it becomes homogeneous. (for approx 1.5 hr).

Step 3: Finely grinded powder is mixed with water having silicone antifoam to form extrudable dough.

Step 4: Dough is passed through extruder to get granules of required size.

Step 5: Wet granules are passed through Fluidized bed drier to remove extra water added and further graded using vibrating screens.

It may be noted that if the herbicidal composition is in the form of wettable granule, the same comprises one or more of the following agriculturally acceptable excipients:

Dispersing agents- sodium polycarboxylate (sodium polyacrylate), naphthalene sulfonic acid, sodium salt condensates with formaldehyde, polyalcoxylated alkylphenol, naphthalene sulfonic acid formaldehyde condensate, methyl naphthalene-formaldehyde-condensate sodium salt, naphthalene condensates, lignosulfonates, calcium lignosulfonate, lignin sulfonate sodium salt, alkyl naphthalene sulfonate, sodium salt. The preferred dispersing agent is alkyl naphthalene sulfonate. It provides an excellent wetting, dispersing, hydrotroping and medium to low foaming. It offers acid and base stability, hard water tolerance and high temperature stability.

Wetting agents- sodium N-methyl-N-oleoyl taurate, alkylated naphthalene sulfonate, sodium salt, mixture of isomers of dibutyl naphthalene sulphonic acid sodium salt, sodium di-isopropyl naphthalene sulphonate, sodium Lauryl sulfate, dioctyl sulfate, alkyl naphthalene sulfonates, phosphate esters, sulphosuccinates and non-ionic such as tridecyl alcohol ethoxylate, alkyl or alkaryl sulfonates such as alkylbenzene sulfonates, alpha olefin sulfonate and alkyl naphthalene sulfonates, ethoxylated or non-ethoxylated alkyl or alkaryl carboxylates, alkyl or alkaryl phosphate esters, alkyl polysaccharide, di or mono alkyl sulfosuccinate derivatives, alpha olefin sulfonates, alkyl naphthalene sulfonates, dialkyl sulphosuccinates, butyl, dibutyl, isopropyl and di-isopropyl naphthalene sulfonate salts, C12 alkyl benzene sulfonate or C10-C16 alkyl benzene sulfonate, organosilicons surfactants includes trisiloxane ethoxylate, polydimethylsiloxane, polyoxyethylene methyl polysiloxane, polyoxyalkylene methyl polysiloxane, polyether polymethyl siloxane copolymer, trisiloxane heptamethyl, Polyalkyleneoxide modified heptamethyl trisiloxane, polyether modified polysiloxane, may or may not be in modified form, may be liquid or powder form or mixture thereof etc;

Antifoaming agent- polydimethylsiloxane and silicone.

Carrier- china clay, silica, lactose anhydrous, ammonium sulfate, sodium sulfate anhydrous, corn starch, urea, EDTA, urea formaldehyde resin, diatomaceous earth, kaolin, bentonite, kieselguhr, fuller's earth, attapulgite clay, bole, loess, talc, chalk, dolomite, limestone, lime, calcium carbonate, powdered magnesia, magnesium oxide, magnesium sulphate, sodium chloride, gypsum, calcium sulphate, pyrophyllite, silicates and silica gels; fertilizers such as, for example, ammonium sulphate, ammonium phosphate, ammonium nitrate and urea; natural products of vegetable origin such as, for example, grain meals and flours, bark meals, wood meals, nutshell meals and cellulosic powders; and synthetic polymeric materials such as, for example, ground or powdered plastics and resins, bentonites, zeolites, titanium dioxide, iron oxides and hydroxides, aluminium oxides and hydroxides, or organic materials such as bagasse, charcoal, or synthetic organic polymers;

Humectant- humic acid, glycerol, lactose, Sodium sulphate anhydrous.

It may be noted that if the herbicidal composition is in the form of Suspension Concentrate, the same comprises one or more of the following agriculturally acceptable excipients:

Wetting agent- ethylene oxide/propylene oxide (EO/PO) block copolymer, poly aryl phenyl ether phosphate, polyalkoxylated butyl ether, ethoxylated fatty alcohol, sodium dioctyl sulfosuccinate, sodium lauryl sulfate and sodium dodecyl benzene sulfonate, alkyl diphenyl sulfonates, sodium isopropyl naphthalene sulfonate, alkyl naphthalene sulfonate. Ethoxylated alcohol includes natural fatty alcohol (lauryl alcohol ethoxylate, lauryl alcohol alkoxylate), synthetic alcohol ethoxylate (tridecyl alcohol ethoxylate, 2-ethyl hexanol, 2-propylheptanol, isodecyl alcohol.

Wetting-spreading-penetrating agent-trisiloxane ethoxylate, heptamethyl trisiloxane, modified form includes polyalkyleneoxide modified heptamethyl trisiloxane, polyether modified polysiloxane, polyalkyleneoxide modified trisiloxane, polyalkyleneoxide modified polydimethylsiloxane, may be liquid or powder form.

Dispersing agent- Naphthalenesulfonic acid, sodium salt condensate with formaldehyde, alkylated naphthalene sulfonate, sodium salt, sodium salt of naphthalene sulfonate condensate, sodium ligno sulfonate, sodium polycarboxylate, EO/PO based copolymer, phenol sulfonate, sodium methyl oleoyl taurate, styrene acrylic acid copolymer, propylene oxide-ethylene oxide-copolymer, polyethylene glycol 2,4,6-tristyrylphenyl ether, tristyrylphenol-polyglycol ether-phosphate, tristyrylphenole with 16 moles EO, tristyrylphenol-polyglycol ether-phosphate, oleyl-polyglycol ether with ethylene oxide, tallow fatty amine polyethylene oxide, nonylphenol polyglycol ether with 9-10 moles ethylene oxide;

Suspending agent- aluminum magnesium silicate, bentonite clay, silica, attapulgite clay.

Antifoaming agent- silicone antifoam emulsion, dimethyl siloxane, polydimethyl siloxane, vegetable oil based antifoam, tallow based fatty acids.

Anti-freezing agent- ethylene glycol, propane diols, glycerin or the urea, glycol (monoethylene glycol, diethylene glycol, polypropylene glycol, polyethylene glycol), glycerin, urea, magnesium sulfate heptahydrate, sodium chloride etc.

Preservatives- 1,2-benzisothiazolin-3(2H)-one, sodium salt, sodium benzoate, 2-bromo-2-nitropropane-1,3-diol, formaldehyde, sodium o-phenyl phenate, 5-chloro-2-methyl-4-isothiazolin-3-one & 2-methyl-4-isothiazolin-3-one

Thickeners- xanthan gum, PVK, carboxymethyl celluloses, polyvinyl alcohols, gelatin, sodium carboxymethylcellulose, hydroxyethyl cellulose, sodium polyacrylate, modified starch, acacia gum.

Humectant- urea, humic acid, glycerol, lactose.

In an alternative embodiment of the invention, the process of making the Suspension Concentrate (SC) formulation may comprise:
Step 1- Preparation of Gel: Charge the required quantity of water to a vessel, equipped with a high shear stirrer, and start the agitation. Add the required amount of preservative. Mix until homogenous. Add the required amount of thickener and mix vigorously until it is fully wetted.
Step 2- Charge the required quantity of water to a vessel, equipped with bulk agitator and a high shear homogenizer, and start agitation. Add the required amount of ant freezing agent and mix until uniform. Add the antifoaming agent and ensure that it is well dispersed. Add the wetting and dispersing agent and mix until uniform. Ensure that the dispersing agent is fully dispersed.
Step 3- Now add the active ingredient and continue agitating the vessel contents until all components get dissolved. Mill this pre-mix through a Colloid mill and subsequently through a Dyno mill to meet the specified particle size.
Step 4- Now add remaining antifoaming agent to this SC mill base to a vessel, equipped with bulk agitator. Mix until uniform. Add the required amount of aqueous pre-gel and suspending agent and continue agitation until the formulation is homogeneous and has the target viscosity is reached.

SUMMARY OF THE BIOLOGICAL EXPERIMENTS:
• The present compositions provides quick control and higher efficacy.
• Excellent synergistic weed control of grassy, broad leaf weeds and sedges.
• Excellent efficacy against tough to kill weeds.
• Residual weed control effectively controls subsequent weed flushes.
• Excellent crop safety.
• Increases in yield attributing parameters.

ADVANTAGESOFTHE INVENTION
The present invention provides a composition comprising combination of compounds having synergistic herbicidal effect.

The present invention provides a composition comprising herbicides, said composition being stable.

The present invention provides a composition comprising herbicide compounds for effective control of wide array of weeds.

The present invention provides a composition that can help delay, reduce and/or avoid the onset of herbicidal resistance or can be used on weeds already resistant to existing herbicides.
,CLAIMS:WE CLAIM:

1. A herbicidal composition comprising:
an effective amount of halosulfuron methyl;
an effective amount of fluthiacet methyl;
an effective amount of at least one additional herbicide compound, the additional herbicide compound being selected from a group comprising of the at least one additional herbicide compound is 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide, a triazine herbicide, and a synthetic auxin herbicide; and
at least one agriculturally acceptable excipient.

2. The herbicidal composition as claimed in claim 1, wherein halosulfuron methyl being present in an amount ranging from 1% to 25% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.2% to 10% wt/wt of the composition; the at least one additional herbicide compound being present in an amount ranging from 3% to 70% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

3. The herbicidal composition as claimed in claim 1, wherein halosulfuron methyl being present in an amount ranging from 2% to 17.5% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.3% to 3% wt/wt of the composition; the at least one additional herbicide compound being present in an amount ranging from 3% to 70% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

4. The herbicidal composition as claimed in claim 3, wherein a ratio of halosulfuronmethyl :fluthiacetmethyl being in a range of 5:1 to 7:1; a ratio of the at least one additional herbicide compound :fluthiacetmethyl being in a 2:1 to 125:1; and a ratio of the at least one additional herbicide compound :halosulfuron methyl being in a range of 1:0.040 to 1:2.5.

5. The herbicidal composition as claimed in claim 1, wherein if the at least one additional herbicide compound is 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide, the composition comprises halosulfuron methyl being present in an amount ranging from 5 % to 17.5% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 1.5 % to 3% wt/wt of the composition; the at least one additional herbicide compound being present in an amount ranging from 3% to 30% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

6. The herbicidal composition as claimed in claim 5, wherein if the at least one additional herbicide compound is 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide, a ratio of halosulfuron methyl : fluthiacetmethyl being in a range of 5:1 to 7:1; a ratio of the 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide : fluthiacetmethyl being in a 2:1 to 10:1; and a ratio of the 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitor based herbicide : halosulfuron methyl being in a range of 1: 0.50 to 2.5.

7. The herbicidal composition as claimed in claim 1, wherein if the at least one additional herbicide compound is triazine herbicide, the composition comprises halosulfuron methyl being present in an amount ranging from 2 % to 4% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.3 % to 1.5% wt/wt of the composition; the at least one additional herbicide compound being present in an amount ranging from 30% to 70% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

8. The herbicidal composition as claimed in claim 7, wherein if the at least one additional herbicide compound is triazine herbicide, a ratio of halosulfuronmethyl :fluthiacetmethyl being in a range of 5:1 to 6:1; a ratio of the triazine herbicide :fluthiacetmethyl being in a 80:1 to 120:1; and a ratio of the triazine herbicide :halosulfuron methyl being in a range of 1: 0.040 to 1.

9. The herbicidal composition as claimed in claim 1, wherein if the at least one additional herbicide compound is synthetic auxin herbicide, the composition compriseshalosulfuron methyl being present in an amount ranging from 2 % to 4% wt/wt of the composition; fluthiacetmethyl being present in an amount ranging from 0.3 % to 1% wt/wt of the composition; the at least one additional herbicide compound being present in an amount ranging from 40% to 60% wt/wt of the composition; and the at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

10. The herbicidal composition as claimed in claim 9, wherein if the at least one additional herbicide compound is synthetic auxin herbicide, a ratio of halosulfuronmethyl :fluthiacetmethyl being in a range of 5.5:1 to 6.5:1; a ratio of the synthetic auxin herbicide :fluthiacetmethyl being in a 90:1 to 100:1; and a ratio of the synthetic auxin herbicide: halosulfuron methyl being in a range of 1: 0.050 to 1.

11. The herbicidal composition as claimed in claim 1, wherein at least one of:
the composition comprises 6% to 12% wt/wt of halosulfuron methyl, 1% to 2.5 % wt/wt of fluthiacetmethyl, 10% to 20% wt/wt of tembotrione, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises 6% to 12% wt/wt of halosulfuron methyl, 1% to 2.5% wt/wt of fluthiacetmethyl, 8% to 18 % wt/wt of mesotrione, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises 2 to 3.5 % wt/wt of halosulfuron methyl, 0.1% to 1% wt/wt of fluthiacetmethyl, 35% to 45% wt/wt of Atrazine, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises 2 to 3.5% wt/wt of halosulfuron methyl, 0.1% to 1% wt/wt of fluthiacetmethyl, 35% to 45% wt/wt of Metribuzin, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises 2% to 3.5% wt/wt of halosulfuron methyl, 0.1% to 1% wt/wt of fluthiacetmethyl, 55% to 65% wt/wt of Ametryn, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises 6% to 12% wt/wt of halosulfuron methyl, 1% to 2.5 % wt/wt of fluthiacetmethyl, 2% to 6% wt/wt of Topramezone, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises 6% to 12% wt/wt of halosulfuron methyl, 1% to 2.5% wt/wt of fluthiacetmethyl, 2% to 6% wt/wt of Tolpyralate, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises 2% to 4% wt/wt of halosulfuron methyl, 0.3% to 0.7% wt/wt of fluthiacetmethyl, 40% to 55% wt/wt of 2,4-D herbicide, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition; and
the composition comprises 12.5% to 17.5% wt/wt of halosulfuron methyl, 2% to 3% wt/wt of fluthiacetmethyl, 20% to 30% wt/wt of sulcotrione, and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

12. The herbicidal composition as claimed in claim 1, wherein at least one of:
the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 15% wt/wt of tembotrione (i.e. 15±1.5 % wt/wt of tembotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacet methyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 12% wt/wt of mesotrione (i.e. 12±1.2 % wt/wt of mesotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 40% wt/wt of Atrazine (i.e. 40±4 % wt/wt of Atrazine), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 40% wt/wt of Metribuzin (i.e. 40±4 % wt/wt of Metribuzin), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 60% wt/wt of Ametryn (i.e. 60±6 % wt/wt of Ametryn), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 4% wt/wt of Topramezone (i.e. 4±0.4 % wt/wt of Topramezone), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 4% wt/wt of Tolpyralate (i.e. 4±0.4 % wt/wt of Tolpyralate), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition;
the composition comprises about 3% wt/wt of halosulfuron methyl (i.e. 3±0.3 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl(i.e. 0.5±0.05 % wt/wt of fluthiacet methyl), about 48% wt/wt of 2,4-D herbicide (i.e. 48±4.8 % wt/wt of 2,4-D herbicide), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition; and
the composition comprises about 15% wt/wt of halosulfuron methyl (i.e. 15±1.5 % wt/wt of halosulfuron methyl), about 2.5% wt/wt of fluthiacetmethyl(i.e. 2.5± 0.25 % wt/wt of fluthiacetmethyl), about 24% of sulcotrione (i.e. 2.4±0.24 % wt/wt of sulcotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition.

13. The herbicidal composition as claimed in claim 12, wherein at least one of:
the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 15% wt/wt of tembotrione (i.e. 15±1.5 % wt/wt of tembotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of Suspension concentrate;
the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9% wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 12% wt/wt of mesotrione (i.e. 12±1.2 % wt/wt of mesotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of Suspension concentrate;
the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 40% wt/wt of Atrazine (i.e. 40±4 % wt/wt of Atrazine), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule;
the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 40% wt/wt of Metribuzin (i.e. 40±4 % wt/wt of Metribuzin), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule;
the composition comprises about 2.7% wt/wt of halosulfuron methyl (i.e. 2.7±0.27 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl (i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 60% wt/wt of Ametryn (i.e. 60±6 % wt/wt of Ametryn), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule;
the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 4% wt/wt of Topramezone (i.e. 4±0.4 % wt/wt of Topramezone), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of Suspension concentrate;
the composition comprises about 9% wt/wt of halosulfuron methyl (i.e. 9±0.9 % wt/wt of halosulfuron methyl), about 1.6% wt/wt of fluthiacetmethyl (i.e. 1.6±0.16 % wt/wt of fluthiacetmethyl), about 4% wt/wt of Tolpyralate (i.e. 4±0.4 % wt/wt of Tolpyralate), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of Suspension concentrate;
In a furthermore embodiment of the invention, the composition comprises about 3% wt/wt of halosulfuron methyl (i.e. 3±0.3 % wt/wt of halosulfuron methyl), about 0.5% wt/wt of fluthiacetmethyl(i.e. 0.5±0.05 % wt/wt of fluthiacetmethyl), about 48% wt/wt of 2,4-D herbicide (i.e. 48±4.8 % wt/wt of 2,4-D herbicide), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule; and
the composition comprises about 15% wt/wt of halosulfuron methyl (i.e. 15±1.5 % wt/wt of halosulfuron methyl), about 2.5% wt/wt of fluthiacetmethyl(i.e. 2.5±0.25 % wt/wt of fluthiacetmethyl), about 24% of sulcotrione (i.e. 24±2.4 % wt/wt of sulcotrione), and at least one agriculturally acceptable excipient being present for a remaining quantity of the composition, the composition being in the form of wettable granule.

14. The herbicidal composition as claimed in claim 1, wherein the at least one agriculturally acceptable excipient being selected from a group comprising of safeners, dispersing agents, filler cum carrier, wetting agents, thickener, pH regulator, anti-foaming agent, solvent, emulsifier, preservative, anti-freeze agent, disintegrating agent, viscosity modifying agent.

15. The herbicidal composition as claimed in claim 14, wherein at least one of:
the safener is selected from a group comprising of Cloquintocet mexyl, Cyprosulfamide, Isoxadifen ethyl and Fenclorim;
the dispersing agent is selected from a group comprising of Ethylene-propylene oxide block copolymer, Sodium naphthalene sulphonate formaldehyde condensates, Benzenesulfonic acid, hydroxy-, polymer with formaldehyde, phenol and urea, sodium salt, Naphthalenesulfonic acid-polymer with formaldehyde-sodium salt, Modified Sodium lignosulphonate, Modified polyacrylate copolymer, sodium salt of naphthalene sulfonate condensate and Sodium Polycarboxylate;
the filler cum carrier is selected from a group comprising of china clay/kaolin clay, sand, silica, precipitated silica, bentonite, attapulgite and morillonite;
the wetting agent is selected from a group comprising of Polyalkyleneoxide modified trisiloxane, trisiloxane ethoxylate, Sodium isopropyl naphthalene sulfonate, Polyalkyleneoxide modified trisiloxane and Diisobutyl naphthalene sulfonate, sodium salt;
the thickener is selected from a group comprising of xanthan gum, guar gum, gelatin, carboxymethylcellulose (CMC), bentonite clay, attapulgite clay, sodium polyacrylate and aluminum magnesium silicate;
the pH regulator is selected from a group comprising of sodium hydroxide, potassium hydroxide, calcium hydroxide, sodium carbonate, potassium carbonate, calcium carbonate, potassium hydrogen phosphate salt solution, acetic acid & sodium acetate, ammonia & ammonium chlorides, citric acid, benzoic acid, salicylic acids, hydrochloric acid, phosphoric acid, sodium citrate, soda ash and carboxylic acids;
the anti-foaming agent is selected from a group comprising of siloxane polyalkylene oxide, polydimethyl siloxane, polysiloxane emulsion, vegetable oil-based antifoam, silicone oil emulsion and magnesium stearate;
the solvent is selected from a group comprising of demineralized (DM) water, alcohols-ethanol, propanol, ketones-acetone, ethers-dipropyl ether, dioxane, tetrahydrofuran; mineral oil, heavy aromatic hydrocarbons, alkyl pyrrolidone, N-methyl-2-pyrrolidone, N-octyl pyrrolidone, N,N-dimethyldecanamide, N, N-dimethyloctanamide, N, N-dimethylamine; dimethyl sulfoxide, propylene carbonate and methylated seed oil;
the emulsifier is selected from a group comprising of castor oil ethoxylate 40 mole, Polyoxyethylenealkylphenyl ether alkyl aryl sulfonate, 3-methoxy N, N-dimethyl propionamide, Polyglyceryl-3 caprylate, Polysorbate 60 (polyoxyethylene sorbitan monostearate-Tween 60), solvents alkyl phenol, aryl phenol, alkyl phenol ethoxylate, fatty acid esters, fatty acid alkanol amides and alkoxylated fatty acid ester;
the preservative is selected from a group comprising of benzisothiazolin-3-one, formaldehyde, sodium benzoate, potassium sorbate and 2-bromo-2-nitropropane-1,3-diol;
the anti-freeze agent is selected from a group comprising of alcohols (ethylene glycol, propylene glycol), glycerol, 1,3-butendiol, urea, magnesium sulfate heptahydrate and sodium chloride;
the disintegrating agent is selected from a group comprising of potassium phosphate, ammonium sulphate, sodium sulphate, sodium citrate and urea; and
the viscosity modifying agent is selected from a group comprising of xanthan gum, carboxymethylcellulose (CMC), polyvinyl alcohol, bentonite clay, attapulgite clay, sodium polyacrylate and aluminum magnesium silicate.

16. A process for preparation of a herbicide composition, said process comprising mixing an effective amount of halosulfuron methyl; an effective amount of fluthiacetmethyl; an effective amount of at least one additional herbicide compound; and at least one agriculturally acceptable excipient.