23%苯唑草酮·烟嘧磺隆·莠去津可分散油悬浮剂防治玉米田杂草效果与安全性  

Control Effect and Security of Topramezone·Nicosulfuron·Atrazine 23%OD against Weeds in Corn Field

作　　者：马凯悦 李琦 马爽 刘亦学[2] MA Kai-yue;LI Qi;MA Shuang(Tianjin Huayu Pesticide Co.,Ltd.,Tianjin 300381;Institute of Plant Protection,Tianjin Academy of Agricultural Sciences,Tianjin 300381;Shandong Shibang Agrochemical Co.,Ltd.,Jinan,Shandong 250100)

机构地区：[1]天津市华宇农药有限公司,天津300381 [2]天津市农业科学院植物保护研究所,天津300381 [3]山东仕邦农化有限公司,山东济南250100

出　　处：《安徽农业科学》2022年第20期119-122,共4页Journal of Anhui Agricultural Sciences

摘　　要：[目的]明确23%苯唑草酮·烟嘧磺隆·莠去津可分散油悬浮剂在不同剂量条件下对玉米田一年生杂草的防除效果及对玉米的安全性。[方法]采用随机区组的试验方法设计田间药效试验。[结果]23%苯唑草酮·烟嘧磺隆·莠去津可分散油悬浮剂在有效成分用量为345.00、431.25、517.50、862.50 g/hm^(2)的处理下,施药后30 d对试验玉米田杂草的鲜重防效分别为86.8%、92.8%、95.7%、99.1%,相比空白对照玉米的增产率分别为9.42%、14.28%、16.97%、20.76%。其中,在517.50、862.50 g/hm^(2)处理剂量下,23%苯唑草酮·烟嘧磺隆·莠去津可分散油悬浮剂对田间杂草的防除效果均优于对照药剂。各处理剂量下,均未发现玉米出现明显的药害症状,对玉米安全。[结论]23%苯唑草酮·烟嘧磺隆·莠去津可分散油悬浮剂在玉米田采用茎叶喷雾,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。[Objective]The aim was to clarify the control effect and safety of topramezone·nicosulfuron·atrazine 23%OD on annual weeds in corn field under different dosage conditions.[Method]Field efficacy trials were carried out using randomized block design.[Result]Under the treatment of 345.00,431.25,517.50 and 862.50 g/hm^(2)of effective components,the control effects of topramezone·nicosulfuron·atrazine 23%OD on the average fresh weight of weeds in the experimental corn field were 86.8%,92.8%,95.7%and 99.1%at 30 days after application,respectively.Compared with the blank corn,the yield increase rates were 9.42%,14.28%,16.97%and 20.76%respectively.Among them,under the treatment doses of 517.50 and 862.50 g/hm^(2),the control effect of topramezone·nicosulfuron·atrazine 23%OD on field weeds was better than that of the control agent.Under each treatment dose,no obvious symptoms of phytotoxicity was found in corn,which was safe for corn.[Conclusion]The application of topramezone·nicosulfuron·atrazine 23%OD in corn field by stem and leaf spraying was safe and harmless to maize,and had good weeding effect and certain yield increasing effect.

关 键 词：23%苯唑草酮·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：S451.2[农业科学—植物保护]