论文部分内容阅读
[目的]比较了4种玉米田茎叶处理除草剂4%烟嘧磺隆SC、10%硝磺草酮SC、10.5%硝磺草酮/烟嘧磺隆混剂OD和33.6%苯吡唑草酮SC的除草效果。[方法]于杂草3～8叶期一次性喷药后分别于不同时期调查杂草盖度变化和鲜质量变化。[结果]4种除草剂均使杂草盖度和鲜质量降低,玉米产量增加。[结论]4种除草剂均有良好的除草效果,即使在推荐施用推荐剂量一半的用量,鲜质量防效也达90%以上,显著增加玉米产量。
[Objective] The effects of 4% nicosulfuron SC, 10% mesotrione SC, 10.5% mesotrione / nicosulfuron mixture OD and 33.6% Herbicidal effect of the herbicide SC. [Method] The change of weed cover and the fresh weight of weeds were investigated at different periods after one-time spraying on weeds at 3 ~ 8 leaf stage. [Result] The four kinds of herbicides reduced weed coverage and fresh quality, and increased corn yield. [Conclusion] The four kinds of herbicides all had good herbicidal effect. Even if the recommended dosage was half of the recommended dosage, the fresh quality control effect was over 90%, which significantly increased the yield of corn.