摘要
用2种组合型除草剂对晋南夏县冬小麦田的主要杂草进行了防治试验。结果表明,施药后10 d药剂1(二磺·甲碘隆(制剂)+烷基乙基磺酸盐(助剂))对4种杂草及杂草总体的株数防效总体上要高于药剂2(10%苯磺隆+57%2,4-滴丁酯);施药后20 d处理3(每公顷药剂1制剂315 g+助剂1 200 m L)和处理4(每公顷药剂1制剂375 g+助剂1 500 m L)对4种杂草的株数防效及杂草总体的株数防效进一步提高,尤其是对节节麦的株数防效得到极大提高;施药后20 d较高剂量的药剂1和药剂2对大穗看麦娘的防治效果都较好;较高剂量的药剂1对节节麦及杂草总体的株数防效要高于药剂2;与人工除草相比,使用除草剂会引起小麦减产,相对来说处理3,4效果好些。
The paper conducted a control test on the main weeds in winter wheat fields in Xiaxian area of south Shanxi province,using two combination herbicides based on bensulfuron-methyl. The result showed that 10 days after application, in general drug1 （twosulfonyl methyl iodide（preparation） ＋alkyl ethyl sulfonate（auxiliaries））were better than the drug2（10% benzene＋57% 2, 4-butylester）in controlling four target weeds and the total weeds, the plant reduction of drug 1 was higher. After 20 days of application, treatment3 （1 hectare preparation per hectare 315g＋auxiliary 1 200 mL）and treatment4 （1 hectare preparation per hectare 375g＋auxiliary1 500 mL）further improved the plant reduction of four weeds and total weeds, in particular, the plant reduction of Aegilops tauschii hadbeen greatly improved. After 20 d of application, the higher doses of drug1 and drug 2 had better control effects on Alopecurusmyosuroides. The higher dose of drug 1 had higher plant reduction on Aegilops tauschii weeds and the total weeds than the drug 2.Compared with manual weeding, the use of herbicides would cause wheat yield reduction, relatively speaking, the effect of processing3 and processing4 were better.
作者
李晓琴
姚永定
闫雪
史雨刚
郜卫杰
王曙光
LI Xiaoqin;YAO Yongding;YAN Xue;SHI Yugang;GAO Weijie;WANG Shuguang(College of Agronomy,Shanxi Agricultural University,Taigu 030801,China;Xiaxian Agricultural Technology Extension Station,Xiaxian 044400,China)
出处
《山西农业科学》
2018年第11期1899-1902,共4页
Journal of Shanxi Agricultural Sciences
基金
山西省农业科技成果转化和推广示范项目(SXNKTG201709)
关键词
冬小麦
除草剂
产量
株数防效
winter wheat
herbicide
yield
plant reduction
