Vol. 11, Issue 12 (2022)

The grain and straw yield were significantly enhanced under treatment weed free check and at par with Imazosulfuron 1% GR @ 150 g. a.i. ha^-1 + Pretilachlor 8% @ 1200 g. a.i. ha^-1, Imazosulfuron 1% GR @ 100 g. a.i. ha^-1 + Pretilachlor 8% @ 800 g. a.i. ha^-1 and Imazosulfuron 1% GR @ 75 g. a.i. ha^-1 + Pretilachlor 8% @ 600 g. a.i. ha^-1.

Density and dry weight of grasses, sedges and broad leaved weeds at 30, 60 DAT and at harvest were significantly higher under untreated control (T₈) as compared to rest of the weed control treatments. The weed free check recorded lowest density and dry weight of total weeds followed by pre-emergence application of Imazosulfuron 1% GR @ 150 g. a.i. ha^-1 + Pretilachlor 8% @ 1200 g. a.i. ha^-1. The highest weed control efficiency was recorded in Imazosulfuron 1% GR @150 g. a.i. ha^-1 + Pretilachlor 8% @ 1200 g. a.i. ha^-1 (T₄) (77.65%) followed by weed free check (74.86%). The lower weed index was reported by Imazosulfuron 1% GR @ 150 g. a.i. ha^-1 + Pretilachlor 8% @ 1200 g. a.i. ha^-1 (4.51%) followed by Imazosulfuron 1% GR @ 100 g. a.i. ha^-1 + Pretilachlor 8% @ 800 g. a.i. ha^-1 (4.55).