摘要 : Field studies were conducted on performance of different weed management techniques under aerobic rice (<i>Oryza sativa</i> L.) production system during kharif 2009 at Zonal Agricultural Station, V. C. Farm, Mandya. The major weed... 展开 Field studies were conducted on performance of different weed management techniques under aerobic rice (<i>Oryza sativa</i> L.) production system during kharif 2009 at Zonal Agricultural Station, V. C. Farm, Mandya. The major weed flora observed in the experimental field was <i>Echinochloa colonum</i>, <i>Ageratum conyzoides</i>, <i>Commelina benghalensis</i>, <i>Celosia argentia</i>, <i>Cyperus iria</i> and <i>Cyperus rotundus</i>. Pre-emergent application of bensulfuron methyl+pretilachlor (6.6 GR) @ 0.06+0.60 kg a. i./ha+one intercultivation at 40 DAS recorded higher grain yield (4804 kg/ha) and straw yield (5470 kg/ha). This was at par with bensulfuron methyl+pretilachlor (6.6 GR) @ 0.06+0.60 kg a. i./ha after sowing (4425 and 5020 kg/ha, respectively). 收起