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以反枝苋、藜为测试杂草,研究了草坪修剪和不同时间段模拟降雨对10%苄.甲磺可湿性粉剂防除杂草效果的影响,结果表明,药后2 d修剪显著降低药剂的杂草鲜重防效,药后5 d修剪与不修剪没有显著差异.药后0 h降雨30 mm.h-1,对反枝苋株防效和鲜重防效比无降雨分别低20.0%和3.5%,药后0、1 h降雨对藜株防效比无降雨分别低20.5%和18.0%,鲜重防效约低10.0%,差异达显著水平,药后2 h降雨与无降雨差异不显著,对藜的影响大于反枝苋.草坪施用苄.甲磺后,其修剪或浇水管理应分别于药后5 d和2 h进行.
Taking weeds of amaranth and quinoa as test weeds, we studied the effects of lawn mowing and simulated rainfall at different time periods on the weed control effect of 10% Benzylmethasone WP. The results showed that the pruning on the second day after treatment significantly reduced the dosage of Weeds fresh weight control effect, 5 d after pruning and no pruning no significant difference.After 0 h rainfall 30 mm.h-1, anti-Amaranthus retroflexus control effect and fresh weight control efficiency were lower than the non-rainfall 20.0% And 3.5%, respectively. The control effect of the rain on the population of Chenopodium was 20.5% and 18.0% less than that of the control without rain at 0 and 1 h after treatment, and the control effect was about 10.0% lower than fresh weight. The difference was significant Not significant, the impact of quinoa than the retroflexus amaranth lawn application of metsulfuron, pruning or watering management should be respectively at 5 d and 2 h after drug.