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30%苄嘧.丙草胺等在播后芽前进行土壤封闭处理防除旱直播稻田杂草安全性较好。30%苄嘧.丙草胺适宜用量为1800~2 250 g/hm2,50%苄.戊.异丙隆适宜用量为1 500~1 800 g/hm2,基本可以一次用药控制旱直播稻田整季杂草危害。
30% Bensulfuron-methyl, acetochlor and so on after sowing before budding soil closed treatment of direct control of weeds in paddy field safety is better. 30% benazeprim melatonin appropriate amount of 1800 ~ 2 250 g / hm2, 50% benzyl penta isoproturon appropriate amount of 1 500 ~ 1 800 g / hm2, the basic can be used once a direct control of dry rice field whole season Weeds harm.