Effect of Vermicompost and Fertilizer on Microbial Biomass, Carbon Pools and Hydrolyzable Carbohydrate Acid in Pot Culture Rice

Integrated application of organic and inorganic sources elevates the soil physical, chemical and biological properties along with stabilization of soil health deterioration. Pot culture experiment was carried out at RPCAU, Pusa in kharif, 2019 with four levels of vermicompost (0 t ha^-1, 1.25 t ha^-1, 2.5 t ha^-1 and 3.75 t ha^-1) and three levels of fertilizer RDF (0, 50 and 100 % RDF) on rice for analyzing its effect on soil microbial biomass nitrogen, phosphorus and carbon pool. The microbial biomass carbon, nitrogen, phosphorus and the different carbon pool content elevated from tillering to post harvest stage in soil with response to the higher dose of vermicompost and fertilizer RDF i.e. 3.75 t ha^-1 vermicompost + 100 % NPK. microbial biomass carbon increased up to116%, 125% over control in tillering and post harvesting stage of crop. microbial biomass nitrogen, prosperous and carbon pool content also showed higher results in both crop growth stages due to the higher amount of organic matter addition elevated the carbon pool content and provided the substrate for microbial biomass component increase in pot culture soil.