摘要 : A field experiment was conducted during <i>kharif</i> of 2008 through 2009 to evaluate the combination of bispyribac sodium with azimsulfuron or pyrazosulfuron against complex weed flora in wet direct seeded <i>basmati</i> rice. B... 展开 A field experiment was conducted during <i>kharif</i> of 2008 through 2009 to evaluate the combination of bispyribac sodium with azimsulfuron or pyrazosulfuron against complex weed flora in wet direct seeded <i>basmati</i> rice. Bispyribac-sodium 25 g/ha at 15 DAS was effective in controlling <i>Echinochloa</i> sp. Tank mix application of azimsulfuron 10-20 g/ha with bispyribac 25 g/ha at 15 DAS improved the control of broadleaf weeds (BLW) along with excellent control of sedges. Tank mix application of azimsulfuron with bispyribac was realized useful only in the fields dominated by sedges particularly <i>Cyperus rotundus</i>. Tank-mix or sequential application of pyrazosulfuron 25 g/ha with bispyribac 25 g/ha also provided excellent control of all type of weed except aerobic grassy weeds (<i>Leptochloa</i> sp. and <i>Eragrostis</i> sp. <i>Eleusine</i> sp. and <i>Dactyloctenium aegyptium</i> L.). Pretilachlor (with or without safener) though provided good control of aerobic grassy weeds but it was lowest in terms of grain yield due to poor control of major weeds (<i>Echinochloa</i> sp., BLW and sedges). 收起