Sustainable Production of Nano-biofertilizers using Agro-industrial Residues

Abstract

The present developed a bioprocess to produce nano-biofertilizers from agro-industrial residues by augmentation of microbial agents and vermitechnology. The agroresidues like coir peat, neem cake, pongamia cake, castor cake and polyculture of microorganisms having psuedomonas florescence, microbacterium laevoniformins and pseudomonas putida are added to initiate the degradation of complex biomolecules in the plant biomass into nanosized nutrients line nitrogen (N), phosphorous (P) and potassium (K). The stabilization of produced nano-nutrients are achieved by subjecting to vermitechnology to produce vermicompost aggregates through the associated gut enzymes. The nano-dimension of nutrients are conformed through UV spectrophotometer resulted in higher obsorption compared to control vermicompost. The nano-dimension of nano-nutrients were confirmed by subjecting to dynamic light scattering (DLS) techniques which ranged between 25-50nm. The safety and growth efficiency of nano-fertilizer has been assessed using bioassays like seed germination test on raddish vegetable crop which yielded 100 per cent over vermicompost 90 per cent germination efficiency. The growth indices in the potculutre studies reveals 100 per cent over control vermicompost applied plants showing 90 per cent. This gives scientific support to application of nano-biofertilizer to enhance the growth and yield of the crop and also standardized the process to produce nanobiofertilizers using augmented method of microbial polyculture and vermitechnology.