砜吡草唑对大豆田杂草生长的抑制活性及其作物安全性评价  

Herbicidal Activity of Pyroxasulfone Against Soybean Fields Weeds and its Phytotoxicity to Crops

作　　者：吴明峰 余倩莎 柳爱平 龙楚云 黄至畅 成淑芬 钟馥骏 李建明 陈力华 欧晓明 WU Ming-feng;YU Qian-sha;LIU Ai-ping;LONG Chu-yun;HUANG Zhi-chang;CHENG Shufen;ZHONG Fu-jun;LI Jian-ming;CHEN Li-hua;OU Xiao-ming(National Engineering Research Center for Agrochemicals,Hunan Research Institute of Chemical Industry,Changsha 410014,China;Agrochemical Key Laboratory of Hunan Province,Changsha 410014,China;Hunan Research Institute of Chemical Industry Testing Technology Co.,Ltd.,Changsha 410014,China)

机构地区：[1]湖南化工研究院有限公司国家农药创制工程技术研究中心,湖南长沙410014 [2]农用化学品湖南省重点实验室,湖南长沙410014 [3]湖南化研院检测技术有限公司,湖南长沙410014

出　　处：《精细化工中间体》2023年第1期22-25,共4页Fine Chemical Intermediates

基　　金：长沙市科技计划重点项目(kh2201207)。

摘　　要：采用室内生物活性测定方法研究了新型除草剂砜吡草唑土壤喷雾处理对大豆田四种主要杂草苘麻、藜、狗尾草和马唐的除草活性,并评价了砜吡草唑对大豆作物的安全性。结果表明,砜吡草唑对四种杂草具有较高抑制活性,对三种大豆品种具有较好安全性,选择性指数均大于2。砜吡草唑可用于大豆田杂草的土壤封闭处理。The indoor herbicidal activity of a new herbicide pyroxasulfone with soil spray blocking treatment against four main weeds in soybean fields,Abutilon theophrasti,Chenopodium album,Setaria viridis and Digitaria sanguinalis,was studied by using the indoor bioassay method,and evaluated the safety of pyroxasulfone against three soybean varieties.The results showed that pyroxasulfone had high biological activities on four kinds of weeds and had good safety for the three soybean varieties,the selectivity index was higher than 2.So it can be used as a soil sealing treatment agent in soybean field.

关 键 词：砜吡草唑 大豆 除草剂 安全性 

分 类 号：S482.4[农业科学—农药学]