几种除草剂减量施用防除玉米田杂草的效果  

Efficacy of Herbicides at Reduced Doses on Weeds in Maize Field

作　　者：高立强[1] 杨家荣[1] 张彦龙 贾春虹[3] GAO Li-qiang;YANG Jia-rong;ZHANG Yan-long;JIA Chun-hong(College of Plant Protection,Northwest A&F University,Yangling 712100,China;Agricultural Science and Technology Extension Station,Yongshou 713400,China;Institute of Plant Protection and Environmental Protection,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100089,China)

机构地区：[1]西北农林科技大学植物保护学院,陕西杨凌712100 [2]永寿县农技推广站,陕西永寿713400 [3]北京市农林科学院植物保护环境保护研究所,北京100089

出　　处：《杂草学报》2020年第4期31-38,共8页Journal of Weed Science

基　　金：公益性行业(农业)科研专项(编号:201303022);陕西省科技统筹创新工程计划(编号:2015KTTSNY03-05)。

摘　　要：为验证玉米田除草剂在减量30%施用时对杂草的防除效果,对25%烟嘧·硝草酮可分散油悬浮剂+50%莠去津悬浮剂、22%烟嘧·硝·氟吡可分散油悬浮剂、30%苯唑草酮悬浮剂+90%莠去津水分散粒剂和30%辛酰·烟·滴丁可分散油悬浮剂,在分别加入植物源增效剂(GY-Utmax、HASTEN)、矿物油增效剂[GY-T12(SPRY)]、有机硅增效剂(GY-S903)等增效剂条件下,应用茎叶处理方式进行夏玉米田杂草防除试验。结果表明,尽管部分不同药剂处理对于杂草的防除效果存在不同程度的差异,但在添加增效剂条件下,所有药剂处理减量30%时施用均可有效防除玉米田杂草,不同药剂处理对阔叶杂草和禾本科杂草都表现出较好的防除效果。药剂处理中,杂草株数、鲜重防除效果最低的处理也分别达到了83.37%、87.39%。本试验同时对田间条播种植绿豆用于生物控草进行了初步探讨。To determine the efficacy of herbicides at a 30%dose reduction,the foliage of weeds in a summer corn field were treated when herbicides,nicosulfuron·mesotrione 25%OD admixed with atrazine 50%SC,nicosulfuron·mesotrione·fluroxypyr-meptyl 22%OD,topramezone 30%SC admixed with atrazine 90%WG and bromoxynil octanoate·nicosulfuron·2,4-D-butyl ester 30%OD,added synergists from botanical medicines(GY-Utmax、HASTEN),mineral oil[GY-T12(SPRY)],organic silicon and so on.Although herbicides differed in the levels of control they provided,30%dose reduction of the chemicals maintained their efficacy on broadleaf and gramineous weeds in the field.Control levels achieved based on relative single weed control and fresh weight reduction were more than 84%and 87%,respectively.The value of efield planting mung beans for biological grass control is also discussed.

关 键 词：玉米田 除草剂 减量施用 杂草防除 增效剂 

分 类 号：S451.22[农业科学—植物保护]