| 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 |
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| 引用本文： | 王恒智,谭金妮,吕学深,赵孔平,刘伟堂,王金信.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. |
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| 作者姓名： | 王恒智 谭金妮 吕学深 赵孔平 刘伟堂 王金信 |
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| 作者单位： | 山东农业大学 植物保护学院，山东 泰安 271018 |
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| 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） |
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| 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。
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| 关 键 词： | 丙炔氟草胺 二甲戊灵 联合作用 棉花 安全性 |
| 收稿时间： | 2017/11/29 0:00:00 |
Evaluation of herbicidal activity and safety to cotton of the combination of flumioxazin and pendimethalin |
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| WANG Hengzhi,TAN Jinni,LV Xueshen,ZHAO Kongping,LIU Weitang and WANG Jinxin.Evaluation of herbicidal activity and safety to cotton of the combination of flumioxazin and pendimethalin[J].Chinese Journal of Pesticide Science,2018,20(3):309-315. |
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| Authors: | WANG Hengzhi TAN Jinni LV Xueshen ZHAO Kongping LIU Weitang and WANG Jinxin |
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| Institution: | College of Plant Protection, Shandong Agricultural University, Tai'an 271018, Shandong Province, China |
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| 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. |
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| Keywords: | flumioxazin pendimethalin joint effect cotton safety |
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