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水稻秧田播种前3天或秧苗一叶期,每亩施用灭草特乳油[60％丁草胺(Butachlor或称Machete)2 6-二乙基-N-丁氧甲基氯乙酰替苯胺]75～100毫升(有效成分45～60克),能有效地防除稗(Echinochloa crusgalli)、异型莎草(Cyperus difformis),效果分别为80～90％,90～95％,活性比杀草丹高;残效期25～35天。芽前处理对水苋菜等阔叶杂草也有较好的效果,苗后处理效果较差,灌浅水有利于提高灭草特的药效;施药后淋水,能降低药效。灭草特对上海主要水稻品种双丰一号、加农、新秀、农虎6号等均安全,对广陆矮四号略敏感。
Rice seedling 3 days before sowing or one seedling stage, the application of imazepyr [60% butachlor (Butachlor or Machete) 2 6-diethyl-N- butoxymethyl chloroacetanilide] 75 ~ 100 ml (active ingredient 45 ~ 60 g) can effectively control Echinochloa crusgalli and Cyperus difformis with the effects of 80-90% and 90-95%, respectively, Residual validity of 25 to 35 days. Bud pretreatment of amaranth and other broadleaf weeds also have good results, post-emergence treatment less effective irrigation shallow water is beneficial to improve the efficacy of imazapyr; spraying after application, can reduce the efficacy. Exocrat special Shanghai Shuangfeng on the 1st major rice varieties, Cannon, rookie, Nonghu 6 and so on are safe, a little sensitive to Guanglu Dwarf.