Effect of herbicides on weed control efficiency and Yield Response of Kharif Cowpea (Vigna unguiculata L.) in sandy loam soils of Punjab

Abstract

A field experiment using a randomized block design, eight weed management treatments, and three replications was carried out in the kharif of 2022 at the Division of Agriculture, Lovely Professional University, Phagwara, Punjab, India. To determine the economics and effectiveness of weed control measures for managing weeds in cowpea [Vigna unguiculata (L.). The weed control techniques had a big impact on the weed restrictions.With pre-emergence application (PE) of pendimethalin 0.70 kg/ha combined with hand weeding, the weed density and biomass and greater weed control efficiency were consistently inferior at different stages of crop growth. This confirmed that pre-emergence herbicide application could effectively regulate the weeds emerging early in the season, and the actual controlling of weeds by it led to higher yield and B: C ratio.