丙炔氟草胺与二甲戊灵复配的联合除草作用及对棉花的安全性
投稿时间：2017-11-29      点此下载全文 HTML
引用本文：王恒智,谭金妮,吕学深,等.丙炔氟草胺与二甲戊灵复配的联合除草作用及对棉花的安全性[J].农药学学报,2018,20(3):309-315.
摘要点击次数: 1988
全文下载次数: 1005
作者单位E-mail
王恒智 山东农业大学 植物保护学院, 山东 泰安 271018  
谭金妮 山东农业大学 植物保护学院, 山东 泰安 271018  
吕学深 山东农业大学 植物保护学院, 山东 泰安 271018  
赵孔平 山东农业大学 植物保护学院, 山东 泰安 271018  
刘伟堂 山东农业大学 植物保护学院, 山东 泰安 271018  
王金信 山东农业大学 植物保护学院, 山东 泰安 271018 wangjx@sdau.edu.cn 
基金项目:山东省现代农业产业技术体系（SDAIT-07-011-08）；国家公益性行业（农业）科研专项（201303031）
中文摘要:为明确丙炔氟草胺与二甲戊灵复配的联合除草作用及其对棉花的安全性，采用室内生物测定方法，研究了复配制剂的联合除草类型，测定了其对不同品种棉花的安全性及其在棉花与杂草之间的选择性指数，并对复配制剂进行田间药效试验。温室试验结果显示：丙炔氟草胺与二甲戊灵按不同质量比复配后，对供试杂草马齿苋、反枝苋和马唐均呈现加成或增效作用。其中丙炔氟草胺与二甲戊灵按质量比1：10复配后的除草活性高于二甲戊灵单剂，其在供试棉花品种与供试杂草的选择性指数在25.81~39.39之间，与两种单剂相比，在一定程度上提高了对棉花的安全性。田间药效试验结果显示：丙炔氟草胺与二甲戊灵复配后综合了两种单剂的优势，对铁苋菜、反枝苋、马齿苋、藜和牛筋草均有很好的防除效果且对棉花安全。
中文关键词:丙炔氟草胺  二甲戊灵  联合作用  棉花  安全性
 
Evaluation of herbicidal activity and safety to cotton of the combination of flumioxazin and pendimethalin
Abstract:The weed control efficacy and the safety to cotton of the combination of flumioxazin and pendimethalin were evaluated. Whole-plant dose response experiments were conducted in greenhouse to evaluate the joint effect type, the safety to different cotton varieties, and the selectivity index of the mixtures. Weed control efficacy and response of cotton to the mixtures were also investigated in field experiments. The results of greenhouse study showed that the joint effect type was either additive or synergistic when flumioxazin was mixed with pendimethalin for the control of Portulaca oleracea, Amaranthus retroflexus and Digitaria sanguinalis. When the mass ratio was 1:10, the weed control efficacy of the mixtures was higher than that of pendimethalin applied alone. The selectivity index between cotton varieties and weeds tested was in the range of 25.81–39.39, which suggested the safety of the mixtures to cotton was improved compared with that of flumioxazin and pendimethalin used alone. The results of field experimensts showed that the mixtures of flumioxazin and pendimethalin had good efficacy against Acalypha australis, A. retroflexus, P. oleracea, Chenopodium album and Eleusine indica and was safe to cotton.
Key words:flumioxazin  pendimethalin  joint effect  cotton  safety
查看全文   查看/发表评论   下载PDF阅读器