Effect of different level of NPK and vermicompost on physico-chemical properties of soil growth and yield of green gram (Vigna radiata L.) Nandi-mungo

In the Zaid season (March 2023-June 2023) at Sam Higginbottom University of Agriculture, Technology, and Sciences' main research farm in Prayagraj, an experiment was conducted. Randomized block design with RDF was used in the experiment, along with three levels of NPK (0% NPK, 50% NPK, and 100% NPK) and three levels of vermicompost (0% VC, 50% VC, and 100% VC). The result shows that adding different amounts of organic fertilizers improved the soil's chemical properties, increased growth, and generated more green grams. When RDF, NPK, and VC were applied in treatment T₉ [RDF + @ 100% NPK + @ 100% Vermicompost], the maximum bulk densities at 0 and 15 cm were 1.30 and 1.32 mg m-3, respectively, and the maximum particle densities were 2.56 mg m-3 at 0 and 15 cm.