论文部分内容阅读
[目的]研究小麦、玉米、大豆、油菜、黄瓜等作物对花生田除草剂甲咪唑烟酸残留的敏感性。[方法]室内模拟添加生物测定法。[结果]甲咪唑烟酸对所有供试作物均存在不同程度的抑制作用,黄瓜、油菜、小麦、玉米、大豆根长的IC10值分别为0.013、0.68、13.14、85.87、399.14μg/kg,黄瓜、油菜、小麦、玉米株高的IC10值分别为7.32、37.61、133.28、345.56μg/kg。[结论]黄瓜、油菜对甲咪唑烟酸最为敏感,其次是小麦、玉米,大豆对甲咪唑烟酸残留的耐性最强。同一作物的不同部位对甲咪唑烟酸的残留敏感性也有较大的差异。甲咪唑烟酸施用108 g a.i./hm2的花生田,后茬作物不宜种植黄瓜、油菜和小麦。
[Objective] The research aimed to study the sensitivity of pendimethalin herbicides imidacloprid residues in crops of wheat, corn, soybean, rape and cucumber. [Method] Indoor simulation added bioassay. [Result] The imidacloprid inhibited the growth of cucumber, rape, wheat, maize and soybean root, and the IC10 values were 0.013,0.68,13.14,85.87,399.14μg / kg respectively. The cucumber , IC10 values of rapeseed, wheat and corn plant height were 7.32,37.61,133.28,345.56μg / kg respectively. [Conclusion] Cucumber and rapeseed were the most sensitive to imazapyr, and the second was that wheat, corn and soybean had the strongest resistance to imazapyr. Different parts of the same crop of imidaclopidum residual sensitivity are also quite different. Application of imazapyr to 108 g a.i./hm2 of peanut fields should not be cucumber, rape and wheat following crop production.