Assessment of different weed control methods on growth and yield of wheat

A field experiment was conducted at Agronomy research field, Sher-e-Bangla Agricultural University, Bangladesh during November, 2012 to March, 2013 to find out the impact of different weed control methods on growth and yield of wheat. The experiment was carried out with four weed control methods viz. W0= control (no weeding), W1= two hand hoe weeding at 20 DAS and 40 DAS, W2= Topstar 80WP (Oxadiargyl 800 g/kg) @ 75 g/ha as postemergence and W3= Sunrice 150WG (Ethoxysulfuron 150 g/kg) @ 100 g/ha as early post-emergence herbicide using Completely Randomized Block design with three replications. Among the weed control methods Sunrice 150WG (W3) showed minimum total number of weed (29.8/m2), weed biomass (6.5 g/m2), maximum weed control efficiency (57.8%), grain yield (3.9 t/ha), straw yield (5.3 t/ha), biological yield (9.2 t/ha) and harvest index (41.3%). Effective weed control method could be used for the better production of wheat.