Author(s): Komal Nagar, Tarence Thomas, Narendra Swaroop, Kamlendra Kumar and Ashima Thomas

Abstract: There was an experiment carried out in the Zaid season (April 2023-July 2023) at Sam Higginbottom University of Agriculture, Technology, and Sciences. primary research farm in Prayagraj. The design of the experiment was randomized block design with RDF and three levels FYM (0% FYM, 50% FYM and 100% FYM), and three level of Vermicompost (0% VC, 50% VC and 100% VC), and three level of Neem Cake (0% NC, 50% NC and 100% NC). The result shows that adding different amounts of organic fertilizers improved the soil's chemical properties, increased growth, and increased the amount of black gram generated. The use of RDF, FYM, VC, and NC in treatment T₉ [RDF + FYM @ 100% + VC @ 100% + NC @ 100] was observed. Maximum bulk densities were 1.279 and 1.287 mg/m^3 at 0 and 15 cm, respectively, and particle densities of 2.510 and 2.516 mg/m^3 at 0 and 15 cm, as well as percentages of pore space of 46.37% at 0 and 46.67% at 15 and 30 cm, pH 7.04 at 0-15 cm and 7.17 at 15-30 cm, EC 0.45 dS m^-1 at 0-15 cm and 0.47 dS m^-1 at 15-30 cm, organic carbon 0.409% at 0-15 cm and 0.399% at 15-30 cm, and water holding capacity 43.19% at 0-15 cm and 45.32% at 15-30 cm Accessible nitrogen at 0-15 cm and 15-30 cm, 285.32 kg ha^-1 and 280.17 kg ha^-1, Accessible In all treatments, available potassium was found to be 203.97 kg ha^-1 at 0-15 cm and 202.98 kg ha^-1 at 15-30 cm, whereas phosphorus was found to be 20.89 kg ha^-1 at 0-15 cm and 18.97 kg ha^-1 at 15-30 cm.

DOI: 10.33545/26174693.2024.v8.i5e.1098