不同除草剂和药械防除小麦田杂草的田间药效

Field Efficacy of Different Herbicides and Sprayers in Controlling Weeds in Wheat Fields

为了掌握不同药剂、不同药械对小麦田杂草的防除效果及安全性,试验选用不同药剂、不同施药器械防除小麦田杂草。结果表明:用植保无人机喷施4%啶磺草胺可分散油悬浮剂375 mL/hm^(2)+聚醚改性的七甲基三硅氧烷可溶性液剂277.5 mL/hm^(2)处理对小麦田杂草的防除效果最好,药后15、30、45 d对小麦田总草的株防效分别为61.84%、88.07%和83.40%,药后45 d对总草的鲜重防效达到90.72%;在药剂种类及剂量相同的条件下,植保无人机飞防处理对小麦田杂草的防效明显高于人工喷雾处理。

In order to understand the control effect and safety of different herbicides and sprayers in controlling weeds in wheat fields,in the experiment,different herbicides and different sprayers were used to control weeds in wheat fields.The results showed that,treatment A[using plant protection unmanned aerial vehicle(UAV)to spray 4%pyroxsulam OD 375 mL/hm^(2)+polyalkyleneoxide modified heptamethyltrisiloxane SL 277.5 mL/hm^(2)]had the best control effect on weeds in wheat fields.On 15th,30th and 45th day after treatment,the plant control effect on total weeds of treatment A was 61.84%,88.07%and 83.40%,respectively,and the fresh weight control effect on total weeds on 45th day after treatment was 90.72%.Under the condition of the same herbicides type and dosage,the control effect of plant protection UAV spray treatment on weeds in wheat fields was significantly higher than that of artificial spray treatment.