本试验的主要目的是评价28%氟磺胺草醚·烯草酮EC对绿豆、红小豆田杂草的药效、杀草谱及对作物生长的安全性。试验采用苗后茎叶喷雾及田间定期调查的方法。28%氟磺胺草醚·烯草酮EC的杀草谱较广,对一年生禾本科杂草及大部分阔叶杂草有较好的防效。施药后15 d调查,对各种杂草的株数防效在78.2%~100.0%之间;施药后30 d调查,株数防效在77.6%~95.9%之间,总鲜重防效在89.3%~97.4%之间。施药后,部分绿豆、红小豆着药叶片出现叶斑,后期可以恢复,对产量无影响。氟磺胺草醚·烯草酮在吉林省绿豆、红小豆田适宜使用剂量应为294.0 g a.i./hm2~357.0 g a.i./hm2,对水量375L/hm2;绿豆、红小豆1~3片复叶期是使用该除草剂的最佳时期。
【英文摘要】
The paper aims to assess the weed control efficacy, controlling spectrum and safety of fomesafen and clethodim 28% EC in mung bean and red bean fields. Post-emergence spraying and periodic investigation were used in our experiments. This herbicide could control annual grass weeds and most of broadleaf weeds effectively because of broader controlling spectrum. The control effects were investigated 10 and 30 d after spraying. The quantitative control effects range from 78.2% to 100.0% after 10 d and from 77.6...
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