Effect of organic, inorganic and integrated nutrient management practices on soil health and productivity of soybean based cropping systems

Abstract

An investigation was carried out at two locations viz. Indian Institute of Soil Science (IISS), Bhopal and Indra Gandhi Krishi Vishwavidyalaya(IGKVV), Raipur to find out the effect of nutrient management practices on productivity of soybean based cropping systems. Among the nutrient management practices, the mean productivity of soybean and mustard at Bhopal was the highest under organic practice (1380 and 1769 kg/ha) followed by integrated nutrient management 1293 and 1231 kg/ha and inorganic (1222 and 1152 kg/ha), respectively. However, in case of wheat, the yield Was higher with integrated nutrient management practice (4719 kg/ha) as compared to inorganic (4377 kg/ha) and organic (4337 kg/ha). At Raipur, the productivity of soybean was higher under the inorganic (2250 kg/ha) followed by integrated (2216 kg/ha) and organic practices (2068 kg/ha). At the end of sixth crop cycles, organic nutrient management increased soil organic carbon by 33.9% followed by integrated nutrient management (13.2%) over initial status. The percentage increase in available N, P and K was also the highest under organic (56.6, 273.1 and 15.1%) than integrated (42.9 84.3 and11.5%) and inorganic nutrient management practices