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[目的]筛选适宜除草剂以防除决明田杂草。[方法]试验选用3种土壤处理剂和3种茎叶处理剂,评价不同处理在决明田的除草效果。[结果]96%精异丙甲草胺EC 792.00 g a.i./hm2和50%敌草胺WG 975.00 g a.i./hm2处理,药后45 d,对总杂草的鲜质量防效均达81%以上;8.8%精喹禾灵EC 46.20 g a.i./hm2、10.8%高效氟吡甲禾灵EC 32.40 g a.i./hm2和6.9%精恶唑禾草灵EW 38.81 g a.i./hm2,药后30 d,对总禾本科杂草的鲜质量防效均达84%以上。[结论]以上5种除草剂处理可以用于决明田除草。
[Objective] The research aimed to screen suitable herbicides to prevent the weeds in Cassia obtusifolia. [Method] Three kinds of soil treatment agents and three kinds of stem and leaf treatment agents were selected to evaluate the weeding effect of different treatments in Caimingtian. [Result] The fresh quality control effects of 96% sotalol EC 792.00 g ai / hm2 and 50% diperoxide WG 975.00 g ai / hm2 on the total weeds were over 81% ; 8.8% quizalofop-p-ethyl EC 46.20 g ai / hm 2, 10.8% ciprofloxacin EC 32.40 g ai / hm 2 and 6.9% fenoxaprop-EW 38.81 g ai / hm 2 after 30 d Total grass weeds fresh quality control effect reached more than 84%. [Conclusion] The above five kinds of herbicides could be used for weeding in Cassia obtusifolia.