The dominant weed flora under weedy check recorded at 60 DAS were Cyperu.\rotunelus. Phaloris minor. Rumex denticulata. Chenopodium album, Melilotus spp. and Anagallis arvensis. Zero tillage was dominated by sedge, whereas reduced and convcntionLlI by broad-leaved weeds, specially Rumex dentit'ulata which suppressed all other weeds at late stages of crop growth. Isoproturon atlkg ha'i (30 DAS) fb 2, 4-D 0.5 kg ha- ' (40 DAS) was more effective to minimize weed density and their dry weight under all the tillage treatments than glyphosat~ at 0.5 I fb isoproturon at 1.0 kg ha", sulfosulfuron at 25 g ha" and isoproturon at 1.0 kg ha'i. The minimum weed control efficacy was observed in alone application of sulfosulfuron and isoproturon. On an average, isoproturon fb 2, 4-D increased the grain yield by 42.3, 38.0 and 39.1% over weedy check in zero, reduced and conventional tillage, respectively.