Effect of Herbicides Doses and Dates of Application on Weed, and Weed Indices in Wheat

Weeds pose a serious threat to wheat productivity. A study was undertaken during the winter season of 2019/20 in experimental field, National Agronomy Research Centre, NARC, Khumaltar assess various doses and application dates for controlling mixed weed flora wheat. The experiment laid out Randomized Complete Block Design with ten treatments replicated thrice net plot size 6 sq. m. included metribuzin @ 250 g/ha at 25 DAS 45 DAS, 500 carfentrazone 20 40 metribuzin+carfentrazone (@ g/ha+ g/ha) + pendimethalin 1000 2 weedy check. Data regarding density biomass were recorded following standard procedures. result revealed applied respectively, 24%, 33%, 26% lower total comparison use showed maximum herbicide efficiency index, 2.17%, closely followed by (1.92%).