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A study on survival of fluid bed dried and lignite formulations of agriculturally beneficial microorganisms on seeds of cowpea and finger millet was undertaken to know the efficacy of bio formulations where these biological formulations applied to seeds helps to deliver the agents to the spermosphere and the plants obtain a conducive environment. Seed treatment has the potential to deliver microbiological agents in the right amount, at right time and at right place. The seeds treated with fluid bed dried and lignite formulations at single, dual and triple combinations were tested for the survival of microbial inoculants at five different intervals of seed treatment (0 4, 8, 16 and 24 hrs) for both cowpea and finger millet by drop plate method. The higher survival of inoculants was observed in triple inoculants formulation followed by dual and single inoculants in fluid bed dried formulations when compared to lignite based formulation.
Key words: Fluid Bed Dried Formulation, Lignite Formulation, Cowpea, Finger Millet, Microbial Survival on Seed