29%环磺酮·烟嘧磺隆·莠去津可分散油悬浮剂防治玉米田一年生杂草效果与安全性  

Control Effects of Tembotrione·Nicosulfuron·Atrazine 29% OD against Annual Weeds and Security in Corn Field

作　　者：李琦 刘亦学[1] 于金萍[1] 张惟[1] 徐志军 余小龙 赵美芹 徐欣媛 LI Qi;LIU Yi-xue;YU Jin-ping;ZHANG Wei;XU Zhi-jun;YU Xiao-long;ZHAO Mei-qin;XU Xin-yuan(Tianjin Institute of Plant Protection,Tianjin 300381,China;Henan Jinxiuzhixing Crop Protection Company Limited,Zhengzhou 450000,China;Beijing Kefaweiye Pesticide Research Center,Beijing 100125,China;Beijing Great-Agri Institute of Pesticide Technology,Beijing 100016,China)

机构地区：[1]天津市植物保护研究所,天津300381 [2]河南锦绣之星作物保护有限公司,郑州450000 [3]北京科发伟业农药技术中心,北京100125 [4]北京大农时代农药技术研究所,北京100016

出　　处：《农药》2018年第11期851-854,共4页Agrochemicals

摘　　要：[目的]明确29%环磺酮·烟嘧磺隆·莠去津可分散油悬浮剂对玉米田一年生杂草的防效及对玉米的安全性。[方法]采用随机区组试验设计方法进行田间药效试验。[结果] 29%环磺酮·烟嘧磺隆·莠去津可分散油悬浮剂在用量为261、304.5、348 g a.i./hm2的条件下,施药后30 d对玉米田一年生杂草的鲜重防效为88.64%、91.60%、95.26%,防效较好,玉米的增产率分别为9.37%、10.17%、11.32%。其中,在304.5 g a.i./hm2剂量下,防效与增产率要优于3个对照药剂。[结论] 29%环磺酮·烟嘧磺隆·莠去津可分散油悬浮剂在试验剂量下,于玉米田苗后、杂草2～4叶期进行茎叶喷雾处理,对玉米安全,无药害发生,除草效果良好,并具有一定的增产作用,可以作为玉米田的主要除草剂进行使用。[Aims] The study aims to confirm the control effects of tembotrione·nicosulfuron·atrazine 29% OD against annual weeds and safety in corn field. [Methods] Field pharmacodynamic experiments were carried out by random group test design. [Results] At 30 d after treatment, the average fresh weight control effects of tembotrione ·nicosulfuron·atrazine 29% OD at 261, 304.5, 348 g a.i./ha were 88.64, 91.60, 95.26%, respectively. The corn yield increased significantly with increasing rate of 9.37, 10.17, 11.32%, respectively. The control effect and growth rate were both better than three contrast agents at dose of 304.5 g a.i./ha. [Conclusions] Tembotrione·nicosulfuron·atrazine29% OD can be used at 2 to 4 leaf stage in corn field by stems-leaves spraying. It is safe on corn and control effectively weeds with increasing production. So it can be used as the major herbicide in corn field.

关 键 词：29%环磺酮·烟嘧磺隆·莠去津可分散油悬浮剂 玉米 杂草防除 安全性 

分 类 号：S482.4[农业科学—农药学]