Impact of Integrated Nutrient Management Modules on Soil Microbial Population and Fertility Under Soybean Based Cropping System

The field experiment was conducted during 2005-2009 to study the effect of nutrient management modules on soil microbial population and fertility status of soil under system based cropping system. Population of soil bacteria, fungi and actinomycetes was favoured under the integrated management modules in both cropping system. Application of inorganic fertilizers coupled with organic biofertilizers to succeeding gram crop residues produced of previously crop augmented the available N and K of soil at the completion of 4^th cycle under soybean gram cropping system. The value of N, P and K status of soil were found significantly superior with the application of 50% RDF+FYM @ 5 t ha^-1 over organic or inorganic modules.