# GreenbayBio > GreenbayBio is the agricultural bio-input brand of Greenbay Biotech International Pvt Ltd., an Indian company based in Kolkata, West Bengal. It supplies bio-fertilizers, soil improvers, biostimulants, plant-strength foliar products and root-zone water management for Indian agriculture. Products reach farmers through a retailer and distributor network; this website carries the product information and takes enquiries. There is no online checkout and no public pricing. Every product page states that product's composition, technical specifications, application methods, documented crops with the stage and dose taken from its technical specifications, pack sizes, precautions, the approval it holds, and its technical data sheet in English and Hindi. Approvals differ product by product and are never stated for the range as a whole. ## Official website - [GreenbayBio](https://greenbaybio.com/): the canonical site. Full factual corpus: https://greenbaybio.com/llms-full.txt ## Products - [All products](https://greenbaybio.com/catalog): the full range, grouped by category. - [AGN](https://greenbaybio.com/catalog/agn): Liquid Bio-Fertilizer · PSB. Rebuilds soil biology in the root zone for deep-rooted crops. Markdown: https://greenbaybio.com/catalog/agn.md - [AGN LTE](https://greenbaybio.com/catalog/agn-lte): Liquid Bio-Fertilizer · PSB · Extended Programme. The same living soil biology as AGN, tuned for shallow-rooted crops. Markdown: https://greenbaybio.com/catalog/agn-lte.md - [AminOPF](https://greenbaybio.com/catalog/aminopf): Organic Plant Feed · Protein Hydrolysate 20%. Plant-derived amino acids for ready uptake and stress resilience. Markdown: https://greenbaybio.com/catalog/aminopf.md - [BIODYNAMIC](https://greenbaybio.com/catalog/biodynamic): Biofertilizer · PSB Powder · “Soil Synergy”. A powder soil-synergy booster for fields, nurseries and greenhouses. Markdown: https://greenbaybio.com/catalog/biodynamic.md - [Biovin](https://greenbaybio.com/catalog/biovin): Organic Soil Improver · Humified Grape Must. Turns humified grape must into living, active soil. Markdown: https://greenbaybio.com/catalog/biovin.md - [Crop4Life BIOFOLIAR](https://greenbaybio.com/catalog/crop4life-biofoliar): Markdown: https://greenbaybio.com/catalog/crop4life-biofoliar.md - [Fulvic 25](https://greenbaybio.com/catalog/fulvic-25): 100% Natural Fulvic · Humic Substance 16%. A natural chelator and biostimulant for uptake and stress tolerance. Markdown: https://greenbaybio.com/catalog/fulvic-25.md - [Hydretain](https://greenbaybio.com/catalog/hydretain): Root-Zone Moisture Management. Keeps more water at the roots — cutting watering by up to 50% or more. Markdown: https://greenbaybio.com/catalog/hydretain.md - [Nature’s Green 4+](https://greenbaybio.com/catalog/nature-s-green-4-plus): Natural CO₂ Organic Foliar Spray. Micronised calcite that strengthens cells and boosts photosynthesis. Markdown: https://greenbaybio.com/catalog/nature-s-green-4-plus.md - [Plant Armor Elite](https://greenbaybio.com/catalog/plant-armor-elite): All-Natural Protective Plant Wash · Powder. A vitamin & biochemical wash that armours crops against stress. Markdown: https://greenbaybio.com/catalog/plant-armor-elite.md ## Product categories - [Soil Biology](https://greenbaybio.com/product-categories/soil-biology): Bio-fertilizers that repopulate the rhizosphere with beneficial microbes — rebuilding depleted soil, crowding out disease and unlocking nutrients crops can actually use. - [Soil Improvers](https://greenbaybio.com/product-categories/soil-improvers): Organic matter that restores soil structure, water retention and biological activity — the long-term foundation of a productive field. - [Biostimulants](https://greenbaybio.com/product-categories/biostimulants): Chelators and plant-derived amino acids that help crops absorb and use nutrients efficiently and stay resilient under stress — even in cold or difficult conditions. - [Plant Strength](https://greenbaybio.com/product-categories/plant-strength): Foliar sprays that stimulate the plant’s own defences and metabolism — supporting flowering, fruit quality, disease resistance and tolerance to heat, drought and cold. - [Water Management](https://greenbaybio.com/product-categories/water-management): Root-zone moisture management that keeps more water available to roots — reducing watering needs and improving survival through dry spells and transplanting. ## Crop programmes - [All crop programmes](https://greenbaybio.com/crop-solutions): 12 crops. - [Grape](https://greenbaybio.com/crop-solutions/grape): products, crop stages and doses documented for grape. - [Pomegranate](https://greenbaybio.com/crop-solutions/pomegranate): products, crop stages and doses documented for pomegranate. - [Sugarcane](https://greenbaybio.com/crop-solutions/sugarcane): products, crop stages and doses documented for sugarcane. - [Citrus](https://greenbaybio.com/crop-solutions/citrus): products, crop stages and doses documented for citrus. - [Cotton](https://greenbaybio.com/crop-solutions/cotton): products, crop stages and doses documented for cotton. - [Banana](https://greenbaybio.com/crop-solutions/banana): products, crop stages and doses documented for banana. - [Tomato](https://greenbaybio.com/crop-solutions/tomato): products, crop stages and doses documented for tomato. - [Chilli](https://greenbaybio.com/crop-solutions/chilli): products, crop stages and doses documented for chilli. - [Potato](https://greenbaybio.com/crop-solutions/potato): products, crop stages and doses documented for potato. - [Onion](https://greenbaybio.com/crop-solutions/onion): products, crop stages and doses documented for onion. - [Wheat & Paddy](https://greenbaybio.com/crop-solutions/wheat-paddy): products, crop stages and doses documented for wheat & paddy. - [Turmeric & Ginger](https://greenbaybio.com/crop-solutions/turmeric-ginger): products, crop stages and doses documented for turmeric & ginger. ## Knowledge base (general agronomic science) - [What is soil biology?](https://greenbaybio.com/knowledge/soil-biology): Soil biology is the living part of soil — bacteria, fungi, protozoa, nematodes and larger animals — and the processes they drive: decomposition, nutrient cycling, soil structure and disease suppression. - [What is the rhizosphere?](https://greenbaybio.com/knowledge/rhizosphere): The rhizosphere is the thin zone of soil around a living root that the root itself changes — through exudates, water uptake and respiration — and where most plant–microbe interaction happens. - [What are bio-fertilizers?](https://greenbaybio.com/knowledge/bio-fertilizers): A bio-fertilizer is a preparation of living microorganisms that improves the supply or availability of nutrients to a crop. It is regulated, specified by microbial count, and works differently from a chemical fertiliser. - [What are biostimulants?](https://greenbaybio.com/knowledge/biostimulants): A plant biostimulant improves nutrient-use efficiency, stress tolerance, quality or nutrient availability independently of its own nutrient content. Humic substances, amino acids, seaweed extracts and beneficial microbes are the main categories. - [What are phosphate-solubilizing bacteria (PSB)?](https://greenbaybio.com/knowledge/phosphate-solubilizing-bacteria): PSB are soil bacteria that release phosphorus already present in soil but chemically locked up — by secreting organic acids and phosphatase enzymes. They are the basis of a large share of India’s registered bio-fertilizers. - [What are humic and fulvic substances?](https://greenbaybio.com/knowledge/humic-and-fulvic-substances): Humic substances are the stable organic fraction left after decomposition. Humic acid, fulvic acid and humin are separated by solubility; fulvic is the smallest and most mobile, and the strongest chelator. - [What are amino-acid biostimulants and protein hydrolysates?](https://greenbaybio.com/knowledge/amino-acid-biostimulants): Protein hydrolysates supply free amino acids and short peptides from hydrolysed plant or animal protein. They act as directly usable nitrogen, as chelators and as signals — and plant-source products differ from animal-source ones. - [Foliar spray, soil application or fertigation — which and when?](https://greenbaybio.com/knowledge/foliar-and-soil-application): Foliar spraying, soil application and fertigation deliver an input to different places by different routes. Each suits different products, quantities and purposes, and each has its own conditions for working properly. ## Technical information and approvals - [Guides, data sheets and approvals](https://greenbaybio.com/resources): the application guides, the technical data sheet for every product in English and Hindi, and the approval each product holds, product by product. ## About and contact - [About GreenbayBio](https://greenbaybio.com/about): mission, approach and technology partners. - [Contact](https://greenbaybio.com/contact): 2B, Grant Lane, 3rd Floor, Room No. 304, Kolkata 700012, India. Phone +91 33 4064 6022. Email support@greenbaybio.com. - [Frequently asked questions](https://greenbaybio.com/faq) ## Retailer and distributor information - [Become a retailer](https://greenbaybio.com/retailer-enquiry) - [Become a distributor](https://greenbaybio.com/distributor-enquiry) ## Events and field activity - [Gallery](https://greenbaybio.com/gallery): photographs from published GreenbayBio events — farmer meetings, retailer meetings, training and product launches — each one named, typed and located on the page. ## Optional - [Privacy policy](https://greenbaybio.com/privacy-policy) - [Terms of use](https://greenbaybio.com/terms) - [Disclaimer](https://greenbaybio.com/disclaimer)