9种除草剂对单季晚稻直播田杂草防治效果及对产量的影响

Effect of 9 herbicides on weed control effect and yield in single-cropping late rice direct seeding field

宓盛 ¹任洁 ¹杨凤丽¹

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作者信息

1. 德清县农业技术推广中心, 浙江德清 313200
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摘要

为有效防控直播稻田杂草,筛选高效、安全药剂,选择了目前市场上防治杂草的 9 种主流药剂开展田间防治效果试验,并研究这些药剂对产量的影响.试验结果表明,4%双唑草腈悬浮剂(SC)、40%苄嘧·丙草胺可湿性粉剂(WP)、25 g·L-1 五氟磺草胺可分散油悬浮剂(OD)+300 g·L-1 丙草胺乳油(EC)、38%苄·噁·丙草胺 WP、13%氰氟·吡啶酯 EC应用效果良好,药后 30 d后总草防治效果和鲜重防治效果均在 90%以上,产量损失挽回率均在 55%以上.17%五氟·氰氟草 OD使用 30 d后鲜重防治效果 87.55%,产量损失挽回率为 56.13%.生产上建议推广应用以上 6 种药剂.300 g·L-1 丙草胺 EC、10%噁唑酰草胺 EC、30%氰氟草酯EC防治效果和挽回产量效果不理想,不建议推广应用.

Abstract

In order to effectively control weeds in direct seeding paddy field and screen efficient and safe agents,9 main weeds control agents were selected to carry out field control experiments,and the effects of these pesticides on yield were studied.The results showed that 4%biazole chlor SC,40%benzylpyr propachlor WP,25 g·L-1 pentaflusulfam OD+300 g·L-1 prochlor EC,38%benzyl-ox-prochlor WP and 13%cyanofluoropyridine ester EC had good control effect.The control effect of total weed were more than 90%and the recovery rate of yield loss was more than 55%at 30 days after treatment.After 30 days of use of 17%pentafluoro·cyanofluoroxoxa,the control effect of weed fresh weight was 87.55%,and the recovery rate of yield loss was 56.13%.In terms of production,it is recommended to promote the application of the above 6 kinds of agents.300 g·L-1 prochlor EC,10%oxazolamid EC,30%cyanofluoxalate EC control effect and yield recovery effect are not ideal,and it is not recommended to promote the application.

关键词

除草剂/单季晚稻/田间防治效果/产量

Key words

herbicides/single-cropping late rice/field control effectiveness/yield

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出版年

2024

浙江农业科学

浙江省农业科学院,浙江大学

浙江农业科学

影响因子：0.523

ISSN：0528-9017

参考文献量6

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