Vol. 11, Issue 8 (2022)

Author(s):
PD Thakare, VM Bhale, MR Deshmukh, DT Dhule and JP Deshmukh

Abstract:
Awareness towards soil health, productivity, and food quality has forced to find out a suitable and eco-friendly tillage and nutrient management practice of crop production. To study the impact of tillage and nutrient management on soybean under Vertisolic soil was studied at the Department of Agronomy, Dr. PDKV, Akola during 2018-19. The experiment was laid out in split plot design with five main plot and three sub plot treatments replicated for three times. The main plot treatments were constituted of five tillage practices viz., (1) Conservation tillage (CnT), Minimum tillage (MT), Subsoil tillage (ST), Roto Tillage (RT) and Conventional Tillage (CvT). Subplot treatments were comprised of three nutrient management i.e. 100% RDF (100 RDF), 75% RDF + 2 t ha^-1 FYM +1.5 t ha^-1 soybean straw (75RDF) and 50% RDF + 4 t ha^-1 FYM + soybean straw + 1.5 t ha^-1 soybean straw. The other cultural practices were kept common, as recommended. Results shows that, rainfed soybean grown on a clayey soil with Subsoil tillage exhibited better growth and yield attributes and recorded significantly higher seed yield. Nutrient management with 100% RDF (30:75:30 NPK kg/ha), being comparable to 75RDF, resulted in higher growth and yield attributes and seed yield of soybean. Improvement in soil physical properties viz., soil moisture content, porosity, mean weight diameter, rate of infiltration, Hydraulic conductivity was observed with tillage practice of subsoil tillage and integrated nutrient management practices of 75 RDF and 50RDF. Significantly higher gross monetary returns and net monetary returns along with maximum benefit: cost ratio were obtained with subsoil tillage. Application of 100% RDF recorded significantly higher gross monetary returns and net monetary returns along with maximum benefit: cost ratio.