Description:FIELD OF THE INVENTION

[001] The present disclosure generally relates to microgreen cultivation and more particularly relates to a microgreen cultivation growing medium with a multilayer coir disk.

BACKGROUND OF THE INVENTION

[002] Microgreens are young, tender greens harvested at an early stage of growth, typically when the first true leaves appear. These miniature versions of mature plants are packed with flavor, vibrant colors, and an impressive concentration of nutrients, making them increasingly popular among health-conscious consumers, culinary enthusiasts, and home gardeners alike.

[003] Microgreens can be grown in soil based media or soil-less media such as coco peat. There are many challenges in growing microgreens and ensuring consistent yield. The key challenges are uneven growth, falling over, forming of mold or fungus, and slow germination. Uneven growth is characterized by growing tall on one side of the tray, and shorter on the other side. The main reason for uneven growth is uneven spreading of seeds. Typically, the growing tray will be overpopulated with the seeds, making the seeds compete for limited resources, leading to uneven growth. Uneven light and low nutrient growing medium also contribute to uneven growth.

[004] Falling over is another challenge while growing microgreens where they tend to lean over to one side of the tray and often appear as losing its vitality. The main reason for falling over is lack of water or untimely watering. Falling over also could be due to deficiency of air and light or lack of nutrients in the growing medium. Presence of mold or fungus is another challenge. Molds are white fuzzy growth and often can be mistaken for root hair. Another challenge in growing microgreens is slow germination. Molds and fungus grow because of improper moisture retention in the growing medium, whereas slow germination is due to the lack of water and air, i.e., due to humidity.

[005] There is a need for a growing medium that can facilitate optimum supply of air, light, nutrients, and water from bottom, provide moisture retention and air ventilation, prevent falling over, and at the same time preventing growth of molds or fungus.

BRIEF SUMMARY OF THE INVENTION

[006] This summary is provided to introduce a selection of concepts in a simple manner that is further described in the detailed description of the disclosure. This summary is not intended to identify key or essential inventive concepts of the subject matter nor is it intended for determining the scope of the disclosure.

[007] The primary objective of the current disclosure is to provide a multilayer sterilized coir disk for microgreen growing medium, hereinafter referred to as the "Seed Bed". The seed bed addresses the growing demand for user-friendly and sustainable microgreen cultivation at home and for commercial applications (hydroponics, aeroponics, fogponics systems and methods). Designed for space optimization, ease of use, and environmental responsibility, the seed bed enables individuals and farms to grow fresh, nutritious microgreens affordably. Promoting food security, a connection to homegrown produce, and global well-being, the seed Bed aims to revolutionize microgreen cultivation while fostering health and environmental stewardship.

[008] Accordingly, a multilayer sterilized coir disk is disclosed. The multilayer sterilized coir disk includes a first layer of coco peat comprising fine coco peat dust. The multilayer sterilized coir disk includes a second layer of coco peat comprising compressed coco peat dust of larger dimensions to provide moisture retention. The multilayer sterilized coir disk includes a third layer of coir baby fiber with natural adhesive to provide controlled movement of water and nourishment to upper layers. The multilayer sterilized coir disk includes a fourth layer of coir needle felts for microgreen root growth. The multilayer sterilized coir disk includes a top surface embedded in the first layer and having a plurality of quadrants. Each quadrant comprises plurality of seed holding grooves to grow variety of microgreens, wherein dimension of the plurality of seed holding grooves in each quadrant is different from the grooves in the adjacent quadrant.

[009] The objective of the present disclosure is to provide a microgreen cultivation system to reduce microgreens falling off. The microgreen cultivation system includes multiple quadrants comprising the seed holding grooves for providing space for the microgreens to grow in optimum density to reduce falling off.

[0010] One objective of the present disclosure is to provide a multilayer sterilized coir disk for microgreen cultivation using hydroponics as well as aeroponics and fogponics modern agriculture systems.

[0011] To further clarify advantages and features of the present disclosure, a more particular description of the disclosure will be rendered by reference to specific embodiments thereof, which is illustrated in the appended figures. It is to be appreciated that these figures depict only typical embodiments of the disclosure and are therefore not to be considered limiting of its scope. The disclosure will be described and explained with additional specificity and detail with the accompanying figures.

BRIEF DESCRIPTION OF THE FIGURES

[0012] The disclosure will be described and explained with additional specificity and detail with the accompanying figures in which:

[0013] FIGURE 1A illustrates a multilayer sterilized coir disk, in accordance with an embodiment of the present disclosure; and

[0014] FIGURE 1B illustrates a plurality of seed holding grooves on the top surface of the multilayer sterilized coir disk, in accordance with an embodiment of the present disclosure.

[0015] Further, persons skilled in the art to which this disclosure belongs will appreciate that elements in the figures are illustrated for simplicity and may not have been necessarily drawn to scale. Furthermore, in terms of the construction of the multilayer sterilized coir disk may have been represented in the figures by conventional symbols, and the figures may show only those specific details that are pertinent to understanding the embodiments of the present disclosure so as not to obscure the figures with details that will be readily apparent to those of ordinary skill in the art having benefit of the description herein.

DETAILED DESCRIPTION

[0016] For the purpose of promoting an understanding of the principles of the disclosure, reference will now be made to the embodiment illustrated in the figures and specific language will be used to describe them. It will nevertheless be understood that no limitation of the scope of the disclosure is thereby intended. Such alterations and further modifications to the disclosure, and such further applications of the principles of the disclosure as described herein being contemplated as would normally occur to one skilled in the art to which the disclosure relates are deemed to be a part of this disclosure.

[0017] It will be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of the disclosure and are not intended to be restrictive thereof.

[0018] In the present disclosure, relational terms such as first and second, and the like, may be used to distinguish one entity from the other, without necessarily implying any actual relationship or order between such entities.

[0019] The terms "comprise", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process or method that comprises a list of steps does not include only those steps but may include other steps not expressly listed or inherent to such a process or a method. Similarly, one or more elements or structures or components preceded by "comprises... a" does not, without more constraints, preclude the existence of other elements, other structures, other components, additional devices, additional elements, additional structures, or additional components. Appearances of the phrase “in an embodiment”, “in another embodiment” and similar language throughout this specification may, but do not necessarily, all refer to the same embodiment.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The components, methods, and examples provided herein are illustrative only and not intended to be limiting.

[0021] FIGURE 1A illustrates a multilayer sterilized coir disk, in accordance with an embodiment of the present disclosure. The multilayer sterilized coir disk (105) is also referred to as seed bed. The multilayer sterilized coir disk (105) or the seed bed includes a first layer (135A) of coco peat comprising fine coco peat dust. The first layer (135A) provides moisture retention. The multilayer sterilized coir disk (105) includes a second layer (135B) of coco peat comprising compressed coco peat dust of larger dimensions to provide moisture retention. It is to be noted that the composition and moisture retention property of the first layer (135A) and the second layer (135B) enable optimum growth of microgreen roots during initial growth stages. The multilayer sterilized coir disk (105) includes a third layer (135C) of coir baby fiber with natural adhesive to provide controlled movement of water and nourishment to upper layers. The multilayer sterilized coir disk (105) includes a fourth layer (135D) of coir needle felts for microgreen root growth. The third layer (135C) of coir baby fiber and the fourth layer (135D) of coir needle felts comprise optimum air pore space for facilitating upward movement of water or fog, and for providing strength for microgreen roots during advanced growth stages.

[0022] The multilayer sterilized coir disk (105) includes a top surface (102) embedded in the first layer (135A) and having a plurality of quadrants (115A, 115B, 115C, 115D). Each quadrant comprises plurality of seed holding grooves to grow variety of microgreens, wherein dimension of the plurality of seed holding grooves in each quadrant is different from the grooves in the adjacent quadrant. The plurality of quadrants (115A, 115B, 115C, 115D) comprising the seed holding grooves provides space for the microgreens to grow in optimum density and reduces falling off of the microgreens. It is to be noted that the dimension of the plurality of seed holding grooves in each quadrant is different from the grooves in the adjacent quadrant to accommodate seeds of different dimensions and shapes.

[0023] The multilayer sterilized coir disk (105) is sterilized and compressed. In one embodiment, the multilayer sterilized coir disk (105) is a disc shaped structure as illustrated in Figure 1A. However, the shape of multilayer sterilized coir disk (105) can be different based on the packaging and transportation requirements, for example, in an embodiment, the shape of the multilayer sterilized coir disk (105) is square shaped structure. Further, the microgreen cultivation can be done in each of the plurality of quadrants (115A, 115B, 115C, 115D) when separated. The seed bed can be used for the microgreen cultivation by hydroponics or aeroponics or fogponics.

[0024] Referring to FIGURE 1B, FIGURE 1B illustrates a plurality of seed holding grooves on the top surface of the disk shaped compressed seed bed, in accordance with an embodiment of the present disclosure. In one embodiment, the disk shaped compressed seed bed 105 includes four quadrants (115A, 115B, 115C, and 115D). Each quadrant comprises multiple seed holding grooves to grow variety of microgreens. The dimension of the plurality of seed holding grooves in each quadrant is different from the grooves in the adjacent quadrant to accommodate seeds of different dimensions and shapes. For example, the quadrant 115A can grow seeds of cauliflower, the quadrant 115B can grow seeds of coriander, the quadrant 115C can grow seeds of fenugreek, and quadrant 115D can grow seeds of radish.

[0025] It is to be noted that the multilayer sterilized coir disk 105 can be manufactured to hold a single seed. In one embodiment, the multilayer sterilized coir disk 105 includes two quadrants. The seed holding grooves are spaced uniformly and provides space for the microgreens to grow in optimum density.

[0026] The multilayer sterilized coir disk 105 includes four layers. Out of the four layers, two layers are of coir pith and two layers are of coir fiber, with all four layers compressed together to form a single disc shaped growing medium. The disk shaped compressed multilayer growing medium also referred to as seed bed or cultivation substrate can be of various shapes. In one embodiment, the seed bed is circle shaped or disc shaped. In another embodiment, the seed bed is square shaped. In one embodiment, the seed bed can be 8 inch diameter seed bed. It is to be noted that the seed bed can be of 4 inch or 16 inch diameter depending on the user requirement.

[0027] The first layer 135A made of coco peat includes fine coco peat dust. It is the upper most layer and the various quadrants are imprinted on the first layer 135A. The various types of groove design on the first layer 135A help to hold the seed sowing density perfectly well and fix with the second layer of coir pith to keep the seed in between moistened.

[0028] In one embodiment, the first layer 135A may include antifungal material. The upper most layer has coco peat dust of size < 1mm thickness and consists of small proportion of natural antifungal materials such as neem leaf powder 2% and lemon grass oil 1%. However, in an embodiment, the first layer 135A may include only fine coco peat dust.

[0029] The second layer 135B made of coco peat includes compressed coco peat dust of larger dimensions to provide moisture retention. The coco peat or coir pith has an average particle size of < 2 mm and should be in the grade of electrical conductivity of Low EC <500 mS/cm) and pH between 5.5 and 6.5. The compressed disc of coir pith after soaking up will act as the growing media with its moisture retention qualities. The moistened layer of coir pith which have a water holding capacity of 55-70 %, v/v will serve enough water to sprout the seed well and grow microgreens perfectly.

[0030] The third layer 135C is made of coir baby fibre with natural adhesive to provide controlled movement of water and nourishment to upper layers. The third layer 135C is a layer of compressed coir baby fibres having length of < 8 cm fiber, clustered with less pith and dust particles have 600-800 gsm density and 5mm thickness, bonded with a natural adhesive. In one embodiment, the natural adhesive is Gum Arabic (GA) which is a mixture of polysaccharides and glycoproteins (GPs), which gives it the properties of a glue and binder. Gum Arabic (GA) will fasten up the layers beside and provides the controlled movement of water and nourishments to the upper layer slowly and precisely. It also gives porosity above 85%, this ensures adequate water retention and also a good level of root aeration. In another embodiment, the natural adhesive can be a seaweed extractive, which has anti-fungal property.

[0031] The fourth layer 135D is made of coir fibre needled felt for microgreen root growth, wherein the fourth layer of coir needle felt includes optimum air pore space for facilitating upward movement of water by capillary action. The bottom most or basal layer of Coir needled felt is made out of 100% coir short fibres having length of 8 – 16 cm, which provides a stiff and soft basement. The non-woven fiber (needled felt) mat is mechanically bonded or interlocked and helps to strengthen the root growth and develop a healthy microgreen plant with good quality. In one example, the coir needled felt mat can be of density from 850 to 1000 g/sq. meter, thickness of 4 to 6 mm and 8 inch diameter base layer. This is ideal to provide aeration 20-30 %, v/v which shall meet the quality requirements as specified in IS 15340, which is a standard for coir felts. The needled felts have excellent moisture absorption, retention characteristics and air pore space to form an ideal condition for sprouts to microgreen root growth. The numerous pores in the felt initiate the upward movement of water by capillary movement for the germination of seed in the early stage which was inserted in the uppermost layer. It also provides aeration for the roots in the later stage with bottom layer.

[0032] It is to be noted that the plurality of quadrants (115A, 115B, 115C, 115D) comprising the seed holding grooves provides space for the microgreens to grow in optimum density and reduces falling off of the microgreens. Further, the dimension of the plurality of seed holding grooves in each quadrant is different from the grooves in the adjacent quadrant to accommodate seeds of different dimensions and shapes. In one embodiment, the microgreen cultivation is done in each of the plurality of quadrants (115A, 115B, 115C, 115D) when separated. Consider an example when during transportation the multilayer sterilized coir disk (105) is separated. In such an instance, the multilayer growing medium gets separated evenly based on the quadrants and does not impair the various layers (135A, 135B, 135C, and 135D). The various layers remain intact and can provide separate microgreen growing portions. In another example, each of the quadrant can be cut and separated from the compressed disc according to the size and variety of microgreen seed or convenience of individual users.

[0033] The specification of the four layers of the multilayer sterilized coir disk 105 is further explained below:

[0034] In one embodiment, the seed bed is a hydraulically compressed coir pith and fiber microgreen sterilized growing medium, comprising four distinct layers, each serving a specific purpose in facilitating optimal growth and development of best quality microgreens. The seed bed multilayer coir disk design optimizes and mitigates challenges commonly associated with microgreen cultivation, including top watering, underwatering, and overwatering, dryness, falling over greens, strong air drafts, high humidity, less air circulation, infected and soggy soil, bad drainage through a combination of precise layering design features.

[0035] The first layer, herein named "Coir Pith Dust," consists of fine coir pith dust with a particle size of less than 1mm, integrated with natural antifungal materials, including 2% neem leaf powder and 1% lemon grass oil prevent fungus, bacteria, and mold formation. Additionally, this layer features four types and sizes of groove designs on the top surface, ensuring precise seed sowing density and moisture retention. The groove designs on the top surface further mitigate the impact of top watering, promoting precise seed sowing density and controlled moisture retention.

[0036] The second layer, denoted as "Coir Pith," consists of compressed coir pith with an average particle size of less than 2mm, adhering to stringent quality standards with an Electrical Conductivity (EC) of less than 500 mS/cm and pH range between 5.5 and 6.8. This layer acts as the primary growing media, the "Coir Pith" layer is specifically designed to combat underwatering and dryness by incorporating properties that ensure optimal moisture retention, preventing microgreens from falling over.

[0037] The third layer, designated as "Coir Baby Fiber," comprises clustered coir baby fibers with a length of less than 8cm, bounded as a middle layer by a natural adhesive. With a density of 600-800 gsm and 5mm thickness, this layer facilitates controlled water movement and nourishment distribution to the upper layers as well as drain excess water from top layers ensure optimal root water retention and aeration avoid underwatering and dryness.

[0038] The fourth layer, referred to as "Coir Fiber needled felt," constitutes the basal layer of the "seed bed." Comprising 100% coir short fibers with a length of 8-16 cm, this layer provides a sturdy foundation for root growth, featuring a density ranging from 850 to 1000 g/sq. meter and a thickness of 4 to 6 mm. The Coir Fiber needled felt offers excellent moisture absorption, retention, and air pore space, promoting upward water movement and root aeration helps essential the impact of strong air drafts, ensuring the stability of the seed germination to microgreen growth without falling over greens.

[0039] The sterilized seed bed further encompasses two models, Circle and Square, each accommodating four types of seed beds based on size classifications. These models feature distinct groove designs on the top surface, facilitating perfect seed sowing density and moisture retention for various microgreen seed varieties.

[0040] The customizable quadrant design of the top surface allows efficient and precise sowing of microgreen seeds, promoting diverse microgreen cultivation within a single seed bed, preventing uneven growth, and ensuring that microgreens do not touch each other or compete for space, thereby avoiding issues related to competition for water and nutrients. The overall design of the seed bed focuses on optimal air circulation, mitigating high humidity and reducing the risk of soil-related infections.

[0041] The eco-friendly nature of sterilized seed bed aligns with sustainable agricultural practices, contributing to reduced waste and promoting a closed-loop Agri/food system, wherein waste from harvested microgreens is repurposed as nutrient-rich compost, further enriching soil fertility and supporting a continuous organic cultivation.

[0042] The seed bed is a multilayer coir disk optimized, and ideal and suitable for hydroponic, aeroponic, and fogponics microgreen cultivation system and method.

[0043] Hydroponics:

[0044] Moisture Retention: The first and second layers of the seed bed (Coir Pith Dust and Coir Pith) are specifically designed to provide exceptional moisture retention. The unique composition of these layers ensures a consistent and sufficient supply of moisture to the roots, addressing the critical nutrient absorption requirements in hydroponic systems.

[0045] Water Holding Capacity: The Coir Pith layer's water holding capacity of 55-70%, v/v, establishes an ideal environment for hydroponic microgreen growth. This layer eliminates the need for soil, creating a stable and controlled setting for optimal nutrient uptake by the microgreens.

[0046] Root Aeration: The fourth layer of Coir Fiber Needled Felt, featuring 20-30% air pore space, facilitates efficient root aeration in hydroponic conditions. This characteristic prevents waterlogging, promoting the development of healthy and robust microgreen roots without the reliance on traditional soil mediums.

[0047] Aeroponics:

[0048] Optimized Air Pore Space: The Coir Fiber Needled Felt layer's precisely optimized air pore space is tailored for aeroponic systems. This feature ensures the delivery of a fine mist of nutrient-rich water directly to the exposed roots, enabling efficient nutrient absorption during microgreen development.

[0049] Mechanical Bonding: The mechanically bonded nature of the Coir Fiber Needled Felt provides a stable and supportive structure for microgreen roots in aeroponic environments. This stability is essential for the exposed roots, fostering strong and healthy root growth.

[0050] Fogponics:

[0051] Capillary Movement of Water: The numerous pores in the Coir Fiber Needled Felt initiate capillary controlled water movement, making it well-suited for fogponics systems. This characteristic ensures slow and precise upward movement of water supply, especially during the germination stage, promoting optimal moisture for seed sprouting in fogponics conditions.

[0052] Controlled Water Movement: The third layer of Coir Baby Fiber, designed for controlled movement of water and nourishment, enhances the suitability of the seed bed for fogponics cultivation. This controlled water supply ensures that the upper layers receive water slowly and precisely, creating an ideal microenvironment for microgreen growth in fogponics systems.

[0053] Advantages:

[0054] Customizable Quadrant Design: The top surface with four quadrants and seed-holding grooves is specifically advantageous for efficient and precise sowing of microgreen seeds in hydroponic, aeroponic, and fogponics settings. This feature facilitates diverse microgreen cultivation within the same "Seed Bed," adapting to the specific needs of each cultivation method.

[0055] Environmental Sustainability: The eco-friendly nature of the sterilized seed bed, achieved through the use of coir-based materials, aligns seamlessly with sustainable practices reducing environmental impact in modern cultivation methods for hydroponic, aeroponic, and fogponics microgreen production.

[0056] A method for microgreen cultivation using compressed multilayer coir disk is disclosed. The method includes precise seed sowing based on quadrant design and groove patterns to ensure optimal seed density and moisture retention. Sowing seeds on the compressed seed bed groove disk enhances levelling after soaking and ensures expansion of small coir particles to overlap the seed at an even level. This is analogous to natural seed sowing method when done during cultivation. This soaking and expansion prevents uneven growth, contributing to an even harvest.

[0057] The seed bed utilizes hydraulic compression for coir layers and creates a very thin, lightweight, compact discs for easier handling and storage, reducing shipping costs compared to pre-assembled mediums. Additionally, the 4 quadrant-division on top layers may improve disc durability and user convenience by creating sturdier, more flexible discs.

[0058] The compressed disc format is inherently scalable. One can easily produce discs in various sizes and shape (circle and square) to cater to different planting areas or user needs. Expanding the discs with soaking would be a major advantage for users. It simplifies setup and eliminates the need for pre-assembled trays or containers. The circular or square models of the seed bed along with the four types of seed beds based on size classifications, enable efficient utilization of space and resources, promoting sustainable microgreen cultivation practices. The method emphasizes the closed-loop Agri/food system, wherein waste from harvested microgreens is recycled as nutrient-rich compost, fostering soil health, and supporting continuous organic farming cycles.

[0059] The method and seed bed facilitates closed-loop Zero-Waste Integration for Sustainable agriculture and organic farming.

[0060] Closed-Loop Zero-Waste System:

[0061] The design of the seed bed establishes a microgreen ecosystem, wherein waste generated during the microgreen cultivation process undergoes a transformative and sustainable cycle. The multilayer sterilized coir disk (105), i.e., seed bed, facilitates a closed-loop zero-waste system.

[0062] Double Yield from Harvested Microgreens: The harvested microgreens, post-meticulous trimming, provide a dual yield. Initially gracing plates with tender greens embodying freshness and flavor, the remaining roots, and stems in the seed bed undergo a metamorphosis as a culinary delight for poultry.

[0063] Poultry Integration: The discarded roots, stems, and seeds, along with a blend of eco-friendly coco-pith and fiber from the seed bed, become nutrient-packed remnants consumed by poultry, transforming into eggs of unparalleled quality. This symbiotic relationship adds an ecological layer to the microgreen cultivation process.

[0064] Resource Recycling and Composting: The remnants of microgreen shoots, seeds, and coco-pith and fiber from the seed bed, when combined with poultry manure, undergo composting. Microbes transform this amalgamation into a potent, earthy elixir, rich organic compost that enriches the soil.

[0065] Soil Enrichment and organic Kitchen Garden Cultivation: The compost from the closed-loop system enriches the soil, contributing to the sustainable fresh green organic produce in the kitchen garden. This process empowers plants to flourish using the nutrient-rich organic compost derived from in-house wastage.

[0066] Economic Benefits and Waste Reduction: The closed-loop system highlights economic benefits by recycling seed bed resources within a farm setting. Leftover roots and stems serve as nutritious chicken feed, reducing food waste and reliance on commercial chicken feed.

[0067] Symbiotic Relationship: The system establishes a symbiotic relationship between self-grown microgreens, poultry, and the garden, ensuring a continuous harvest. The chickens benefit from nutritious microgreen fodder, the garden thrives on nutrient-rich compost, and the ultimate benefit is having healthy, fresh live microgreens on the table.

[0068] Environmental Impact Reduction: The system significantly reduces the environmental impact, particularly in urban areas, by minimizing food waste, composting, and promoting the availability of fresh, green leafy vegetables.

[0069] Advantages Beyond Zero-Waste Integration:

[0070] Environmental and Sustainable Microgreen Cultivation: Growing microgreens and sprouts with the seed bed offers advantages such as optimized space with maximum crop yield, water conservation, forefront of food safety, clean and fresh food, reliable harvests, low carbon footprint, and high nutrition for optimal health.

[0071] Sustainable Agriculture Practices: The closed-loop system embodies sustainable farming practices, eliminating waste and transforming it into invaluable resources. This reflects a future-forward, eco-conscious agricultural model for a more harmonious and greener future.

[0072] While specific language has been used to describe the disclosure, any limitations arising on account of the same are not intended. As would be apparent to a person skilled in the art, various working modifications may be made to the method in order to implement the inventive concept as taught herein.

[0073] The figures and the foregoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. For example, orders of processes described herein may be changed and are not limited to the manner described herein. Moreover, the actions of any flow diagram need not be implemented in the order shown; nor do all of the acts necessarily need to be performed. Also, those acts that are not dependent on other acts may be performed in parallel with the other acts. The scope of embodiments is by no means limited by these specific examples. Numerous variations, whether explicitly given in the specification or not, such as differences in structure, dimension, and use of material, are possible. The scope of embodiments is at least as broad as given by the following claims. , Claims:WE CLAIM:

1. A multilayer sterilized coir disk (105), wherein the multilayer sterilized coir disk (105) comprises:
a first layer (135A) of coco peat comprising fine coco peat dust;
a second layer (135B) of coco peat comprising compressed coco peat dust of larger dimensions to provide moisture retention;
a third layer (135C) of coir baby fiber with natural adhesive to provide controlled movement of water and nourishment to upper layers;
a fourth layer (135D) of coir needle felts for microgreen root growth; and
a top surface (102) embedded in the first layer (135A) and having a plurality of quadrants (115A, 115B, 115C, 115D), wherein each quadrant comprises plurality of seed holding grooves to grow variety of microgreens, wherein dimension of the plurality of seed holding grooves in each quadrant is different from the grooves in the adjacent quadrant.

2. The multilayer sterilized coir disk (105) as claimed in claim 1, wherein the plurality of quadrants (115A, 115B, 115C, 115D) comprising the seed holding grooves provides space for the microgreens to grow in optimum density and reduces falling off of the microgreens.

3. The multilayer sterilized coir disk (105) as claimed in claim 2, wherein dimension of the plurality of seed holding grooves in each quadrant is different from the grooves in the adjacent quadrant to accommodate seeds of different dimensions and shapes.

4. The multilayer sterilized coir disk (105) as claimed in claim 1, wherein the first layer (135A) provides moisture retention.

5. The multilayer sterilized coir disk (105) as claimed in claim 1, wherein composition and moisture retention property of the first layer (135A) and the second layer (135B) enable optimum growth of microgreen roots during initial growth stages.

6. The multilayer sterilized coir disk (105) as claimed in claim 1, wherein the third layer (135C) of coir baby fiber and the fourth layer (135D) of coir needle felts comprise optimum air pore space for facilitating upward movement of water or fog, and for providing strength for microgreen roots during advanced growth stages.

7. The multilayer sterilized coir disk (105) as claimed in claim 1, wherein the multilayer sterilized coir disk (105) is compressed and is one of a disc shaped structure or square shaped structure.

8. The multilayer sterilized coir disk (105) as claimed in claim 1, wherein microgreen cultivation is done in each of the plurality of quadrants (115A, 115B, 115C, 115D) when separated.

9. The multilayer sterilized coir disk (105) as claimed in claim 1, wherein microgreen cultivation is done by one of hydroponics or aeroponics or fogponics.

10. The multilayer sterilized coir disk (105) as claimed in claim 1, wherein the multilayer sterilized coir disk (105) facilitates a closed-loop zero-waste system.