47%莠去津·乙草胺·烟嘧磺隆悬浮剂防除玉米田杂草田间药效试验

Studies on Controlling Weeds in Corn Field by 47% Atrazine, Acetochlor and Nicosulfuron SC after Seedling

采用田间小区试验方法,对47%莠去津·乙草胺·烟嘧磺隆悬浮剂苗后茎叶处理防除玉米田杂草进行药效试验。结果表明,47%莠去津.乙草胺.烟嘧磺隆悬浮剂对玉米田单、双子叶杂草均有较高防效,施药后45 d株防效为87.51%～93.58%,鲜重防效为87.29%～92.04%,随使用剂量增加,药效逐渐提高,而且对玉米生长发育无不良影响,产量与人工除草相当。

Good controlling effect to monocotyledon and dicotyledon weeds were achieved by spraying 47%atrazine,acetochlor and nicosulfuron SC after seedling in corn field. The controlling effect of weed quantity was 87.51% to 93.58% in 45 days after spraying, while the controlling effect of weed fresh weight was 87.29% - 92.04%. Controlling effect was improved steadily as more chemical applied. All treatment had not bad influence to corn growing and development and the yield of all treatment was almost the same as artificial weeding.