砜吡草唑与二甲戊灵混配对棉田阔叶杂草的防效及安全性评价
Control effect of pyroxasulfone mixed with pendimethalin on broadleaf weeds in cotton filed and its safety evaluation
摘要
Abstract
[Objective]To confirm the control effect on the mixture of Pyroxasulfone and Pendimethalin to broadleaf weeds in cotton field.[Methods]Field trials were set up with mixture of 40%Pyroxasulfone SC and 330 g/L Pendimethalin EC to evaluate its safety to cotton and control effect on broadleaf weeds,such as Solanum nigrum,Chenopodium glaucum,Amaranthus retroflexus,Portulaca oleracea,Abutilon theophrasti.[Results]The results showed that germination rate of cotton was 80.56%-83.61%in treatment of mixed herbicides,there were no significant differences between treatment and contrast.The dosage of 330 g a.i./L Pendimethalin EC 742.5 g a.i./hm2 were mixed with Pyroxasulfone SC 120,180 and 240 g a.i./hm2 respec-tively,and their control effects of plant to broadleaf weeds were 89.15%,92.03%and 97.83%after 30 days and 87.94%,91.49%and 95.56%after 45 days,the control effects of fresh weigh to broadleaf weeds were 90.80%,93.16%and 95.65%respectively,the compound-dose treatments were more efficient than single-dose treatments on control effects of plant and fresh weight to broadleaf weeds.The yield of each treatment increased9.89%-16.45%compared with control.[Conclusion]40%Pyroxasulfone SC 120-180g a.i./hm2 mixed with 330 g/L Pendimethalin EC are effective to control broadleaf weeds in cotton filed and safe to cotton.关键词
棉花/砜吡草唑/二甲戊灵/阔叶杂草/防治效果/安全性评价Key words
cotton/pyroxasulfone/pendimethalin/broadleaf weeds/control effect/safety evaluation引用本文复制引用
钱涛,吴莉莉,李磊,安尼瓦尔·库尔班,丁瑞丰..砜吡草唑与二甲戊灵混配对棉田阔叶杂草的防效及安全性评价[J].新疆农业科学,2024,61(4):861-868,8.基金项目
青年科技拔尖人才专项"南疆棉田杂草群落演替规律及主要除草剂消解动态研究"(2022TSYCJC0054) （2022TSYCJC0054）
农业农村部西北荒漠绿洲作物有害生物综合治理重点实验室开放基金"二甲戊灵和丙炔氟草胺在棉田土壤的分布及消解动态研究"(KFJJ202203) （KFJJ202203）
新疆农业科学院农业科技创新稳定支持项目"病虫草害与生物安全防控关键技术研发"(xjnkywdzc-2022-004) Youth Science and Technology Top-notch Talent Program"Study on Weed Community Succession and Herbicide Digestion Dynam-ics in Cotton Fields of Southern Xinjiang"(2022TSYCJC0054) （xjnkywdzc-2022-004）
Key Laboratory of Integrated Pest Management on Crops on North-western Oasis,Ministry of Agriculture and Rural Affairs"Research on Digestion Dynamic of Flumioxazin and Pendimethalin in Cot-ton Field Soil"(KFJJ202203) （KFJJ202203）
Stable support project of Xinjiang Academy of Agricultural Sciences"R&D of Key Technologies for Prevention and Control of Agricultural Diseases,Pests,Weeds and Biosafety"(xjnkywdzc-2022-004) （xjnkywdzc-2022-004）
