Effect of nutrient and crop residue incorporation on yield attributes and yield of soybean

Abstract

Managing crop residues has become increasingly challenging in modern agricultural systems, balancing the need to produce sufficient food for a growing population with the imperative to preserve soil health. Crop residue burning not only pollutes the air and contributes to global climate change, but it also harms soil health by speeding erosion. Crop residues are a significant contributor to the stability of agricultural ecosystems, an excellent supply of plant nutrients, and a key source of organic matter. A field experiment was conducted at Research Farm of department of Soil Science, Birsa Agricultural University, Ranchi during rabi season of 2021. The experiment was laid out in a Randomized Block Design (RBD) design with three replications comprising of ten treatments viz., T1-Farmer’s practice 18:40:0::N:P2O5:K2O (soybean), T2- 100% RDF (Kg/ha)::25:60:40:30::N:P2O5:K2O:S(soybean),T3-100% RDF (25% P2O5 as residue incorporation+ 75% basal), T4-100% RDF+ Trichoderma viride, T5-T3+Trichoderma viride, T6- 75% RDF, T7-75% RDF (25% P2O5 as residue incorporation + 75% basal), T8-75% RDF + Trichoderma viride, T9-T7 + Trichoderma viride and T10-Control (only crop residue @ 5t/ha in both the crops) respectively. The crop residue incorporation and nutrient management in soybean influenced the yield attributes and yield of soybean with the highest yield attributing characters and yield achieved with the treatment containing 100% RDF (25% P2O5 as residue incorporation+75% basal)+Trichoderma viride which was at par with 100% RDF N:P2O5:K2O:S (Kg/ha):: 25:60:40:30 (soybean).