Assessing the impact of pigeonpea [Cajanus cajan (L.) Millsp] genotypes under varied fertilization rates: A comprehensive analysis of energy dynamics

Abstract

During the kharif season of 2018-19, an agricultural field trial was conducted at G.B. Pant University of Agriculture and Technology in Pantnagar, Uttarakhand. The primary focus of this study was to investigate the performance of promising pigeonpea [Cajanus cajan (L.) Millsp] genotypes when subjected to different fertilization rates in the Tarai region of Uttarakhand. The main objective was to assess how pigeonpea genotypes respond to varied fertilization rates, aligning with the broader goal of conducting a comprehensive analysis of energy dynamics in the crop. The results obtained during course of investigation revealed that genotypes significantly influenced various energy parameters. Genotype PA 421 was significantly superior over PA 291 and UPAS 120 in terms of energy output, energy efficiency, net energy and energy productivity. Among the fertility levels, 125% RDF recorded significant response to energy input, energy output, net energy and energy intensity of pigeonpea compared to other fertility levels, 125% RDF was at par with 100% RDF, but I was non-significant different in initial and final population and mortality.