The experiment was conducted to assess Microbial biomass carbon and Nitrogen on 84 days organic and conventional incubated soils in Nadia district of West Bengal. Soil microbial biomass carbon & nitrogen is determined by Chloroform Fumigation Extraction method (FE) followed by Kjeldal Digestion method. The results depicted that, microbial biomass carbon and nitrogen was more in organic soil of Phulia and Gayeshpur district rather than conventional method. | Assessment of microbial biomass carbon and microbial biomass nitrogen of incubated organic and conventional treated soil in West Bengal India