Response of different liming materials and phosphorus levels on soil properties and soybean yield on a dystrudept of Nagaland

A split plot design (SPD) with sixteen treatments and replicated thrice during the Kharif season of 2018 and 2019 was conducted to evaluate the response of different liming materials andlevels of phosphorus on yield attributes, soil properties and yield of soybean [Glycine max (L.) Merr.].Application of liming materials and P levels significantly increased pods plant-1, 100 seed weight, grain and stover yield. Interaction effects of different liming material and P levels were also significant for number of pods plant-1, stover and grain yield. The highest yield was recorded with an application of calcium silicate @ 0.4 LR along with 80 kg P2O5ha-1. The maximum uptake of N, P, K, S and Ca were found with CS @ 0.4 LR and 80 kg P2O5ha-1. Their interaction was significantly influenced in nutrients uptake by soybean. Application of liming materials of CS @ 0.4 LR increased with pH-5.41 from the initial pH 5.31. The highest OC % was found in the plots receiving CS @ 0.4 LR (1.17%) and 80 kg P2O5 ha-1 (1.24%). The available N, P and exchangeable Ca2+ and Mg2+ in soilin creased by application of different liming materials and phosphorus levels and their interaction.