Impact of herbicides on weeds and productivity of clusterbean in western Rajasthan

AbstractThe clusterbean is confined mainly as rainfed crop during kharif season in Rajasthan. Clusterbean is severely infested by many broad-leaved and grassy weeds which cause considerable loss of clusterbean productivity and economic returns. A field experiment was conducted for two consecutive years i.e. Kharif 2021 and 2022 on sandy loam soils of Western Rajasthan to assess the effect of new herbicide molecules on weed management and productivity of clusterbean (cultivar HG 2-20). A randomized block design (RBD) with four replications was used. The post-emergence application of propaquizafop 2.5% + imazethapyr 3.75% w/w (propaquizafop + imazethapyr) 135 g/ha at 20 days after seeding recorded maximum weed control efficiency, clusterbean growth, yield attributes, seed yield, net return and B:C ratio of 2.0 and was at par with weed free.