中国农学通报2025，Vol.41Issue(24)：119-125,7.
不同茎叶除草剂防除棉田杂草效果比较及应用示范
Comparison and Demonstration of Weed Control Effect of Foliar-applied Herbicides in Cotton Yield
摘要
Abstract
In order to identify safe and efficient foliar herbicides suitable for cotton fields in Hubei Province,the effect and safety of 9 herbicides on weed control and cotton yield were compared and analyzed in this study by directional spray of stems and leaves after seedling.The results showed that 21 days after treatments,the control effect of 30%topramezone SC 27 ga.i./hm2,5%imazethapyr AS 100 ga.i./hm2,21%glufosinate-P-ammonium SL 820 ga.i./hm2,51%flumioxazin WG 60 ga.i./hm2 and 50%prometryn WP 1050 ga.i./hm2 on total grass fresh weight in cotton field were 99.40%,86.07%,91.17%,98.81%and 99.34%,respectively.It was significantly higher than 25%sulfonsulfuron WG 26 ga.i./hm2,15%nitrone SC 190 ga.i./hm2 and 10%pyrisulfuron WP 30 ga.i./hm2.Yield analysis indicated that all herbicide treatments significantly increased the yield of'Gangmian 13'cotton,with 21%glufosinate-P-ammonium SL 820 ga.i./hm2 and 51%flumioxazin WG 60 ga.i./hm2,showing the greatest yield increase.Safety evaluation revealed that only 15%mesotrione SC 190 ga.i./hm2 posed potential risks to cotton,manifested as a significant reduction in root diameter.Field demonstration(compared to manual weeding)confirmed that both 21%glufosinate-P-ammonium SL 820 ga.i./hm2 and flumioxazin WG 60 ga.i./hm2 enhanced the yield of'Gangmian 13'.In conclusion,21%glufosinate-P SL and 51%flumioxazin WG applied via directional foliar spraying at tested rates are recommended for weed control in cotton fields.This approach delivers significant efficacy while maintaining crop safety.关键词
茎叶除草剂/棉田/杂草/防除效果/应用示范Key words
foliar-applied herbicide/cotton field/weed/control effect/demonstration分类
农业科技引用本文复制引用
张华崇,戴宝生,赵树琪,闫振华,黄晓莉,张欣,李蔚..不同茎叶除草剂防除棉田杂草效果比较及应用示范[J].中国农学通报,2025,41(24):119-125,7.基金项目
国家现代农业产业技术体系"国家棉花产业技术体系专项资金"(CARS-15-36) （CARS-15-36）
湖北省农业科技创新中心资助项目"棉花轻简化机械化智慧化配套品种选育和生产技术研究"(2024-620-000-001-006). （2024-620-000-001-006）
