摘要
[目的]为明确麦草畏、草甘膦钾盐联合作用效果和30%麦草畏·草甘膦钾盐AS对非耕地一年生杂草的防除效果。[方法]采用茎叶喷雾法测定了2种除草剂室内联合作用试验,并对筛选出的最佳配比加工成30%麦草畏·草甘膦钾盐AS进行了田间药效试验。[结果]麦草畏、草甘膦钾盐以1∶9复配对非耕地一年生杂草的联合作用较好,30%麦草畏·草甘膦钾盐AS的推荐使用剂量为1350~1800g a.i./hm2,药后30 d对非耕地一年生杂草的总体防效可达到95.1%~97.6%。[结论]麦草畏、草甘膦钾盐复配互补性强,对反枝苋、马齿苋、狗尾草、马唐等一年生杂草增效作用明显,30%麦草畏·草甘膦钾盐AS能够有效防除非耕地一年生杂草。
[Aims]The study aims to confirm the coeffect of dicamba with glyphosate potassium salt and the control effect of dicamba · glyphosate potassium salt 30% AS against annual weeds in non-cultivated land.[Methods] The method of stem-leaves spraying was used to determine the coeffect of two herbicides indoor and Field trais were carried out on the best proportion selected.[Results] The results showed that the coeffect of dicamba and glyphosate potassium salt complex with 1∶ 9 was better,the recommended dosage for dicamba · glyphosate potassium salt 30% AS was 1350~1800 g a.i./hm2,and the overall control effect on annual weeds non-cultivated land reaches 95.1%~97.6% after 30 days.[Conclusions] The complex of dicamba ·glyphosate potassium salt was highly complementary and synergy was obvious to annual weeds.and dicamba · glyphosate potassium salt 30% AS can control annual weeds in non-cultivated land effectively.
引文
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