SANTANU KUMAR MOHARANA, SHIKHA SINGH AND M. R MESHRAM
Abstract
An experiment was carried out during Kharif season of 2020 at Crop Research Farm, NAI, SHUATS to evaluate the bio-efficacy of herbicides on growth and yield of moth bean (Vigna aconitifolia) and associated weeds. The experiment consisted of 9 treatments which includes hand weeding, Pendimethalin as pre-emergence herbicide, fluchloralin as pre-plant incorporation and post emergence herbicide, imazethapyr as post-emergence herbicide and Unweeded (Weedy check). The result revealed that, application of Imazethapyr PoE 50 g/ha had maximum weed control efficiency (39.49%) with minimum weed population (60.33 no./m2) over all the treatments applied as pre or post-emergence, whereas grassy weeds (85.94 â 91.17 %) recorded the highest relative coverage as compare to broad leaf weeds (5.30 -7.56 %) and sedges (3.53 â 7.63 %) among all the treatments. Application of fluchloralin PPI 0.50 kg/ha recorded highest seed yield (426.17 kg/ha) and B:C ratio (1.74).