Butachlor, Oxadiargyl, Pretilachlor, Pendimethalin, Rice-wheat cropping system, Sulfosulfuron, Yield

A field experiment was conducted during the years 2002-03 and 2003-04 at Indira Gandhi Krishi Vishwavidyalaya, Raipur (Chhattisgarh) to develop an effective weed management practice in rice-wheat cropping system. Pre-emergence application of oxadiargyl 0.08 kg/ha produced maximum grain yield (5.43 t/ha) of transplanted rice which was comparable to hand hoeing twice at 20 and 35 DAT (5.22 t/ha) and pre-emergence application of pretilachlor 0.75 kg/ha (5.14 t/ha) mainly due to higher weed control efficiencies associated with them than other weed management treatments. Post-emergence application of sulfosulfuron (0.025kg/ha) produced maximum grain yield of wheat which was at par with pre–emergence application of pendimethalin (1.0 kg/ha) and hand hoeing twice.