| 氟咯草酮与二甲戊灵或乙草胺复配的联合除草作用及其对棉花的安全性 |
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| 引用本文： | 郭文磊,王兆振,谭金妮,李伟,王金信.氟咯草酮与二甲戊灵或乙草胺复配的联合除草作用及其对棉花的安全性[J].农药学学报,2016,18(5):605-611. |
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| 作者姓名： | 郭文磊 王兆振 谭金妮 李伟 王金信 |
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| 作者单位： | 1.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）. |
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| 摘 要： | 为明确氟咯草酮与二甲戊灵或乙草胺复配的联合除草作用及其对棉花的安全性，采用温室盆栽法，测定了各单剂的杀草谱、混剂的联合作用类型以及其在棉花与杂草间的选择性指数。结果显示:氟咯草酮对棉田常见阔叶杂草及部分禾本科杂草有良好的防效，并且与二甲戊灵或乙草胺的杀草谱具有一定的互补性。氟咯草酮与二甲戊灵或乙草胺混用，对供试杂草马唐、反枝苋均呈现加成或增效的联合作用类型。氟咯草酮与二甲戊灵或乙草胺按质量比1:2的比例复配后，除草活性均有所提高，其在棉花与马唐和反枝苋间的选择性指数在16.6~20.3之间，与氟咯草酮和二甲戊灵单剂相比，在一定程度上提高了对棉花的安全性。
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| 关 键 词： | 氟咯草酮 二甲戊灵 乙草胺 联合作用 棉花 安全性 |
| 收稿时间： | 2016/3/15 0:00:00 |
| 修稿时间： | 2016/6/23 0:00:00 |
Evaluation of herbicidal activity and safety to cotton of fluorochloridone combined with pendimethalin or acetochlor |
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| GUO Wenlei,WANG Zhaozhen,TAN Jinni,LI Wei and WANG Jinxin.Evaluation of herbicidal activity and safety to cotton of fluorochloridone combined with pendimethalin or acetochlor[J].Chinese Journal of Pesticide Science,2016,18(5):605-611. |
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| Authors: | GUO Wenlei WANG Zhaozhen TAN Jinni LI Wei and WANG Jinxin |
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| Institution: | 1.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 fluorochloridone in combination with pendimethalin or acetochlor were evaluated. Whole-plant dose-response experiments were conducted in greenhouse to evaluate the weed control spectrum of the single herbicide, the joint effect type and the selectivity index of the mixture. The results showed that fluorochloridone could effectively control most of the broadleaf weeds and part of grass weeds in the cotton fields, and the spectrum was complementary to that of pendimethalin or acetochlor. When fluorochloridone was mixed with pendimethalin or acetochlor, the joint effect type was either additive or synergistic, in the case of both Digitaria sanguinalis and Amaranthus retroflexus. When the mass ratio was 1:2, the herbicidal activity of the above two combinations were both improved, and the selectivity index between cotton and D. sanguinalis or A. retroflexus was in the range of 16.6-20.3, which suggested the safety of the above two combinations to cotton was improved compared to that of fluorochloridone and pendimethalin used alone. |
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| Keywords: | fluorochloridone pendimethalin acetochlor joint effect cotton safety |
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