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Rice is one of the most important agricultural crops in Assam, cultivated under diverse conditions ranging from irrigated fields to rainfed and lowland paddy systems. Maintaining nutrient availability, root development and biologically active soil is an important part of sustainable rice production. Microbial biofertilizers can be incorporated into an integrated crop nutrition program to complement appropriate fertilizer and organic-matter management.

Peak Laboratories, India manufactures microbial biofertilizer formulations suitable for agricultural applications, including products intended for rice and paddy cultivation. These beneficial microorganisms can be incorporated into nursery treatment, soil application, root-zone application, drip systems where appropriate, and other crop-management programs according to the formulation and product recommendations.

Important Microbial Biofertilizers for Rice

Azotobacter: Nitrogen-fixing bacteria that can support biological nitrogen availability and beneficial microbial activity in the crop root zone.

Azospirillum: A plant-associated nitrogen-fixing bacterium commonly used in cereal crop biofertilizer programs. It can be incorporated into integrated nutrient-management programs for paddy cultivation.

Phosphate Solubilizing Bacteria (PSB): PSB helps convert certain forms of poorly available soil phosphorus into forms that may become more accessible to plants. It is particularly relevant where phosphorus availability is constrained by soil chemistry.

Potassium Mobilizing Bacteria (KMB): KMB is used to support biological mobilization of soil potassium and can form part of an integrated potassium-management program.

Zinc Solubilizing Bacteria (ZSB): Zinc-solubilizing microorganisms may help improve the biological availability of zinc present in less-soluble forms in the soil.

NPK Microbial Consortium: A combination of beneficial microorganisms selected to support nitrogen, phosphorus and potassium management. Such consortia provide rice growers with a convenient multi-microbe approach to biological nutrient management.

Biofertilizers and Assam's Acidic Soils

Many agricultural soils in Assam are acidic, and soil reaction can influence phosphorus availability and overall nutrient-use efficiency. Microbial inputs such as PSB, KMB and selected beneficial rhizobacteria can be considered as part of a broader soil-fertility strategy alongside soil testing, organic matter, liming where agronomically justified, and balanced fertilizer application.

Biofertilizers should not be viewed as a universal replacement for conventional fertilizers. Their strongest role is generally as a component of integrated nutrient management, where microbial activity, organic inputs and conventional crop nutrition are managed together.

Applications in Rice Cultivation

Depending on the formulation, microbial biofertilizers may be incorporated through seed or nursery treatment, seedling root treatment, soil application, organic-manure enrichment, root-zone application, irrigation or other recommended methods.

Actual dosage and application method should be selected according to the microorganism, CFU concentration, carrier/formulation, crop stage, soil conditions and product label.

Peak Laboratories can supply microbial agricultural products in liquid, talc-based powder and water-soluble/dextrose-based formulations, depending on the organism and commercial requirement.

Products are suitable for enquiries from rice growers, agricultural input distributors, dealers, cooperatives, FPOs, agricultural projects and bulk agricultural-input buyers.