大豆玉米带状复合种植田杂草防除技术集成试验
Integrated Experiment on Weed Control Technology in Soybean-Corn Belt Composite Planting Fields
毛奇 1闵红 1张国彦 1徐永伟 1马跃1
作者信息
- 1. 河南省植物保护检疫站,河南郑州 450002
- 折叠
摘要
为了集成适合大豆玉米带状复合种植田杂草防除的有效技术模式,于2023年开展土壤喷雾封闭、土壤喷雾封闭+茎叶喷雾补杀("一封一补")防除杂草的大区试验.结果表明,播后苗前使用80％砜吡草唑·嗪草酮WG 450 g/hm2或45％精异丙甲草胺CS 1 500 mL/hm2+33％精异草·丙炔氟CS 1 500 mL/hm2进行土壤喷雾,对禾草的株防效在94％以上;45％精异丙甲草胺CS 1 500 mL/hm2+33％精异草·丙炔氟CS 1 500 mL/hm2 土壤喷雾、80％砜吡草唑·嗪草酮WG 450 g/hm2 土壤喷雾封闭+480 g/L灭草松AS 3 000 mL/hm2茎叶喷雾对禾草及阔叶杂草的综合防效达94％以上.集成了适合禾草化除的"土壤封闭"模式、禾阔双除的"土壤封闭"模式以及"一封一补"模式,安全性高,在登记的基础上,可用于河南省大豆玉米带状复合种植田杂草防治.土壤喷雾后,必须通过浇水或降雨来增加土壤墒情,才能较好地发挥药效.
Abstract
In order to integrate effective technology models of weed control in soybean-corn belt composite planting fields,the field experiment was conducted to control weeds via herbicides applied at pre-emergence stage and pre-and post-emergence stage in 2023.The results showed that plant control effects of pyroxasulfone·metribuzin 80％WG at 450 g/hm2 or s-metolachlor 45％CS at 1 500 mL/hm2+s-metolachlor·flumioxazin 33％CS at 1 500 mL/hm2 applied at pre-emergence stage on gramineous weeds were all more than 94％.The comprehensive control effects of s-metolachlor 45％CS at 1 500 mL/hm2+s-metolachlor·flumioxazin 33％CS at 1 500 mL/hm2 applied at pre-emergence stage,pyroxasulfone·metribuzin 80％WG at 450 g/hm2 applied at pre-emergence stage+bentazone 480 g/L AS at 3 000 mL/hm2 applied at post-emergence stage soil on gramineous weeds and broad leaves weeds were all more than 94％.In this work,we integrated three weeding modes including weeding gramineous weeds at pre-emergence stage,weeding gramineous weeds and broad leaves weeds at pre-emergence stage,and weeding at pre-and post-emergence stages.The herbicids with high selectivity could control weed in composite planting fields of Henan Province on the basis of registration.
关键词
大豆玉米带状复合种植/土壤喷雾/一封一补/杂草防除Key words
soybean-corn belt composite planting/applied at pre-emergence stage/applied at pre-and post-emergence stages/weed control引用本文复制引用
基金项目
河南省重点研发专项(221111112300)
出版年
2024
NETL
NSTL
万方数据