Phosphorus fertilizer bio-catalyst for sustainable crop production
AssigneeBiomineral Systems LLC
InventorNadia Adam
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Abstract
Endophytic microbial strains as biocatalysts isolated from fresh plant samples, compositions, and methods of use thereof to enhance the growth and/or yield of a plant in the presence of reduced synthetic phosphate fertilizers are provided. Endophytic microbial strains serve as biocatalysts to solubilize mineral-P and mineralize organic-P otherwise unavailable to plants for their nutritional phosphate needs. Thus defined, biocatalysts, will serve to replace synthetic phosphate fertilizers. Also provided are materials and methods for inoculating plants with these biocatalysts at carefully selected inoculum densities to reliably reduce the amount of synthetic phosphate fertilizer by 50% thus accomplishing obtaining optimal yields in technically and cost-effective manner.
Claims8
A synthetic combination comprising a purified bacterial population in association with a seed of an agricultural plant, wherein the purified bacterial population comprises a plant bacterial endophyte that is heterologous to the seed, having all the identifying characteristics, of NRRL B 67827, and is capable of producing organic acids, acid phosphatase, and alkaline phosphatase enzymes, to solubilize soil phosphorus at acid and alkaline soil pHs and wherein the plant bacterial endophyte is present in the synthetic combination at a concentration of at least 105 CFU/seed on the surface of a seed or inside the seed and in an amount effective to reduce phosphorus fertilizer requirement for optimal plant growth and yield in organic and conventional agriculture compared to a reference agricultural plant grown under the same conditions with no reduction in phosphorus fertilizer.
Dependencies are inferred from the claim text.