M.N. SreenivasaHema C. Rao2016-11-112016-11-112011http://krishikosh.egranth.ac.in/handle/1/85118An experiment was conducted at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad to study the influence of microbially enriched organic manures viz., compost, vermicompost and biogas slurry on microbial activity, growth and yield of brinjal during kharif 2010.The microbial load and nutrient status of manures improved due to microbial enrichment. Among the manures enriched vermicompost showed highest microbial population, N, P, K and micronutrient content. The rhizosphere population of bacteria, fungi, actinomycetes, phosphate solubilizers and free living nitrogen fixers were significantly highest when enriched manures were applied with green manure as compared to RDF + FYM at 45, 75 and 105 days after transplantation. The enzymatic activities viz., dehydrogenase, urease and phosphatase were significantly highest when enriched manures were applied with green manure at all the stages of crop growth. Significantly highest mycorrhizal spores were noticed in the rhizosphere soils applied with enriched compost, enriched vermicompost and green manure. The plant growth parameters like plant height, root length, number of branches and leaves, chlorophyll content and dry matter production were significantly highest with the application of enriched compost, enriched vermicompost and green manure and it was found to be significantly superior over individual manurial treatments. The N, P and K concentration of plants were also significantly highest in the same treatment. The yield of brinjal was significantly highest with the application of enriched manures with green manure as compared to unenriched manurial combination and it was on par with that of RDF + FYM. This study clearly brought out significant improvement in soil biological indicators such as microbial population and enzymatic activity due to combined application of enriched organic manures and green manure. There was significant improvement in the growth and yield of brinjal with the combined application of enriched organic manures and green manure.Thesis