Response of soil test based nutrient management approaches on growth and yield of soybean in soybean- sorghum based cropping system

Abstract

An experiment was conducted during kharif and rabi seasons of 2017-18 and 2019-20 at Agricultural Research Station, Janwada farm, Bidar district, to identify the suitable nutrient management approaches for enhancing production potentials of soybean-sorghum cropping system. The experiment consisted of thirteen treatments with application of different category of nutrients as per soil test based nutrient management approaches including absolute control and RDF. Significantly higher seed (54.73 q ha-1) and haulm (68.38 q ha-1) yield of soybean was recorded in SSNM approach targeted yield of 30 q ha-1 + 25 kg FeSO4 5H2O ha-1 (T13) and the increase was to an extent of 65.81 and 36.54 Percent, respectively when compared to absolute control. The increase in seed and haulm yield of soybean in T13 could be due to the maximum plant height (cm), leaves plant-1, branches plant-1, total dry matter production (g plant-1) and nodules plant-1 of soybean as influenced by nutrient management approaches in conjugation with iron at different growth stages.