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

作　　者：毛奇 闵红 张国彦 徐永伟 马跃 MAO Qi;MIN Hong;Zhang Guoyan;Xu Yongwei;MA Yue(Henan Plant Protection And Quarantine Station,Zhengzhou 450002,China)

机构地区：[1]河南省植物保护检疫站,河南郑州450002

出　　处：《杂草学报》2024年第1期56-61,共6页Journal of Weed Science

基　　金：河南省重点研发专项(编号:221111112300)。

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/hm 2或45%精异丙甲草胺CS 1500 mL/hm 2+33%精异草·丙炔氟CS 1500 mL/hm 2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 1500 mL/hm 2+33%精异草·丙炔氟CS 1500 mL/hm 2土壤喷雾、80%砜吡草唑·嗪草酮WG 450 g/hm 2土壤喷雾封闭+480 g/L灭草松AS 3000 mL/hm 2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。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/hm 2 or s-metolachlor 45%CS at 1500 mL/hm 2+s-metolachlor·flumioxazin 33%CS at 1500 mL/hm 2 applied at pre-emergence stage on gramineous weeds were all more than 94%.The comprehensive control effects of s-metolachlor 45%CS at 1500 mL/hm 2+s-metolachlor·flumioxazin 33%CS at 1500 mL/hm 2 applied at pre-emergence stage,pyroxasulfone·metribuzin 80%WG at 450 g/hm 2 applied at pre-emergence stage+[JP+1]bentazone 480 g/L AS at 3000 mL/hm 2 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 

分 类 号：S451.222[农业科学—植物保护] S451.224