药剂土壤封闭处理对大豆玉米带状复合种植带杂草的防控效果
Study on the control effects of soil sealing treatment by herbicides on weed in corn-soybean strip compound planting field
赵钰琦 1史琳烨 1周瑞雯 1张晓艳 2李昕芫 2李修强 3李起荣 3谢洪芳1
作者信息
- 1. 南京市植保植检站,南京 210036
- 2. 南京市六合区植保植检站,南京 211500
- 3. 先正达(中国)投资有限公司,上海 200126
- 折叠
摘要
为筛选出大豆玉米带状复合种植模式下防除杂草的有效药剂,采用喷雾法开展了不同除草剂土壤封闭处理对复合种植区域田间杂草的防效.结果表明,40%砜吡草唑SC、50%丙炔氟草胺WG、80%唑嘧磺草胺WG、960 g/L精异丙甲草胺EC及其混配组合等 5 个除草剂处理对大豆和玉米生长安全,且对杂草总株防效均达 80%以上.其中50%丙炔氟草胺WG+80%唑嘧磺草胺WG的混配组合处理对田间主要杂草的防效较好,施药后15、30、60 d时对杂草总株防效分别为 89.3%、98.8%、97.6%;40%砜吡草唑SC在施药后 60d时对杂草总鲜重防效最高为92.4%.基于此,建议在大豆玉米复合种植模式下田间杂草的防除可优选 50%丙炔氟草胺WG+80%唑嘧磺草胺WG组合和40%砜吡草唑SC.
Abstract
To screen out the effective herbicide that can be used to control weed in corn-soybean compound planting area,different herbicides with soil sealing treatment to control weed in compound planting area by spray method were tested.The results showed that five herbicide treatments including pyroxasulfone 40%SC,flumioxazin 50%WG,flumesulfame 80%WG,s-metolachlor 960 g/L EC and mixture were safe for the growth of soybean and corn,and also the total plant control effect reached more than 80%.Among the treatments,flumioxazin 50%WG+flumesulfame 80%WG had better control effect on some major weeds in field,which control efficiency reached to 89.3%,98.8%and 97.6%on total weed at 15 days,30 days and 60 days after application.The highest control efficiency reached 92.4%on the total fresh weight of weeds at 60 days after pyroxasulfone 40%SC application.Base on the results above,flumioxazin 50%WG+flumesulfame 80%WG and pyroxasulfone 40%SC are preference in soybean-corn compound planting area.
关键词
大豆/玉米/复合种植/封闭处理Key words
soybean/corn/compound planting/soil sealing treatment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据