Vol. 12, Issue 10 (2023)

Author(s):
Ashta Kumar, Parvindra Kumar Salam, Narendra Kumar, Tejpal Chandrakar and Devendra Pratap Singh

Abstract:
A study on the “Effect of different manures on growth and yield of black gram (Vigna mungo L.) under rainfed conditions in Bastar Plateau” was conducted during the Kharif season of 2022 at the New Upland Research cum Instructional Farm, Lamker, under S.G. College of Agriculture and Research Station, Jagdalpur, Bastar (C.G.). The experiment utilized a randomized block design with three replications and ten treatments (T₁-T₁₀). These treatments involved combinations like organic manures with seed inoculation, inorganic fertilizers, and a control. Results showed that in treatment T₈ (Poultry manure @ 2 t ha^-1 + Seed inoculation with Rhizobium + PSB), plant height, number of branches plant^-1, and leaf area index were significantly highest at all growth stages (30, 60 DAS, and harvest). In T₈, dry matter accumulation, crop growth rate, and relative growth rate were notably highest at 30 and 60 DAS, while in T₇ (Poultry manure @ 1 t ha^-1 + Seed inoculation with Rhizobium + PSB), they were significantly highest at harvest. Notably, treatment T₇ stood out by promoting the highest growth parameters and achieving a notable increase in nitrogen, phosphorus, and potassium uptake in both grain and stover. Additionally, T₇ demonstrated significant yield improvements, including 37.27 pods plant^-1, a grain yield of 10.38 quintals ha^-1, and a stover yield of 18.86 quintals ha^-1. The treatment also yielded strong economic results with elevated gross returns (₹ 70,404 ha^-1), net returns (₹ 62,543 ha^-1) and benefit-cost ratio (2.65), underlining its economic viability and profitability.