Response of Inorganic Fertilizers, Crop Residues, Organic Manure and Bio-fertilizer on Soil Health and Yield attributes of Cowpea (Vigna unguiculata L.)

During Kharif season 2021-22 at the central research farm of the Department of Soil Science and Agricultural Chemistry in Naini Agriculture Institute research was carried out on response of cowpea by applying crop residues, organic manure, inorganic and Bio-fertilizers for effective crop growth. The experiment trial was conducted based on Randomize Block design with 9 treatments and 3 replications. The results revealed that the soil bulk density ranged from 1.15 to 1.45 Mg m-3, particles density ranged from 2.04 to 2.44 Mg m-3, and pore space ranged from 40.69% to 45.62%. The pH ranged from 6.63 to 7.27, E.C from 0.146 to 0.253 dS m-1, Soil Organic carbon ranged from 0.344 to 0.627%, Available Nitrogen ranged from 142.38 to 248.39 kg ha-1, Phosphorus ranged from 15.28 to 35.37 kg ha-1, Potassium 179.63 to 240.67 kg ha-1 respectively. T3 was shown the best yield compared to respective treatments which is 19.45 q ha-1 Thus, it indicates that the process of integrated nutrient management may be a better option for the physical and chemical condition of the soil to achieve better growth and yield attributes for Cowpea.