砜吡草唑与丙炔氟草胺对杂草的联合作用及玉米安全性评价  

Joint Control of Binary Combinations of Pyroxasulfone and Flumioxazin Against Weeds and Their Safety to Corn Crops

作　　者：唐海波 孔玄庆 吴晓峰 晏姣 程昂 李建明 金晨钟 TANG Hai-bo;KONG Xuan-qing;WU Xiao-feng;YAN Jiao;CHENG Ang;LI Jian-ming;JIN Chen-zhong(Jielvqiao Town Agricultural Comprehensive Service Center,Yongzhou 423000,China;Hunan Safety Science and Technology Co.,Ltd.,Changsha 410014,China;Yongzhou Institute of Agricultural Science,Yongzhou 423000,China;Cooperative Innovation Center for Weed Control and Application in Farmland,Loudi 413800,China)

机构地区：[1]接履桥街道农业综合服务中心,湖南永州423000 [2]湖南安全生产科学研究有限公司,湖南长沙410014 [3]永州市农业科学研究所,湖南永州423000 [4]农田杂草防控与应用协同创新中心,湖南娄底413800

出　　处：《精细化工中间体》2024年第2期25-29,50,共6页Fine Chemical Intermediates

摘　　要：为筛选出有效防除玉米田杂草的除草剂混剂配比及其作物安全性,采用室内盆栽法测定了砜吡草唑与丙炔氟草胺及其不同比例混配组合对杂草生长的抑制作用及玉米安全性。结果表明,砜吡草唑与丙炔氟草胺不同比例的混配组合对稗草、马唐和藜均表现出加成作用,其中砜吡草唑与丙炔氟草胺质量比为1.25~20∶1时加成作用更为明显。砜吡草唑与丙炔氟草胺质量比为1~20∶1时,其在供试玉米品种和杂草之间的选择性指数较高,对玉米作物安全。In order to evaluate the control efficacy of the combinations of pyroxasulfone and flumioxazin against weeds and their phytotoxicity,whole-plant dose response experiments were conducted to evaluate the joint effect of the combinations of pyroxasulfone and flumioxazin and their safety to corn crops using the potted cultivation method in greenhouse.The results showed that the binary combinations of pyroxasulfone and flumioxazin showed an additive effect against the weeds against Echinochloa crusgalli,Digitaria sanguinalis,and Chenopodium album,and the best additive effect appeared when the mass ratio of pyroxasulfone and flumioxazin was 1.25~20:1.The higher selectivity index took place within the mass ratio 1~20∶1,suggesting that the herbicide combinations should be safe to corn crops.

关 键 词：砜吡草唑 丙炔氟草胺 联合作用 作物安全性 杂草 

分 类 号：S482.4[农业科学—农药学]