饲用高粱、青贮玉米带状间作苗后除草剂筛选及安全性评价  

Screening and Safety Evaluation of Herbicides for Forage Sorghum and Silage Corn Strip Intercropping

作　　者：杜建民[1] 王占军[1] 肖爱萍 张建勇 何建龙[1] 蒋齐[1] Du Jianmin;Wang Zhanjun;Xiao Aiping;Zhang Jianyong;He Jianlong;Jiang Qi(Institute of Forestry and Grassland Ecosystem,Ningxia Academy of Agriculture and Forestry Sciences,Yinchuan,Ningxia 750002;Ningxia Animal Husbandry and Veterinary Station,Yinchuan,Ningxia 750004)

机构地区：[1]宁夏农林科学院林业与草地生态研究所,宁夏银川750002 [2]宁夏回族自治区畜牧工作站,宁夏银川750004

出　　处：《宁夏农林科技》2024年第3期18-22,共5页Journal of Ningxia Agriculture and Forestry Science and Technology

基　　金：宁夏自然科学基金项目(2020AAC03291);银川市重点科技项目“引黄灌区优质牧草一年两熟种植模式研究”。

摘　　要：对饲用高粱、青贮玉米带状间作地用40%甲磺草胺悬乳剂、48%麦草畏水剂及25%二氯喹啉酸悬乳剂3种除草剂单剂和复配使用的杂草防除效果和安全性进行评价。结果表明,40%甲磺草胺悬乳剂、48%麦草畏水剂和25%二氯喹啉酸悬乳剂均对间作饲用高粱和青贮玉米具有良好的安全性,且以40%甲磺草胺悬乳剂540 g·hm^(-2)+48%麦草畏水剂450 m L·hm^(-2)+25%二氯喹啉酸悬乳剂630 g·hm^(-2)复配制剂除草效果表现最优,在饲用高粱3~4叶期喷施,15 d对田间总草(田间全部杂草)防除效果可达93.64%,30 d防除效果为92.80%。The herbicidal effects and safety of 40%mesosulfuron-methyl suspension concentrate(MSC),48%quizalofop-p-ethyl aqueous solution(QZE)and 25%quinclorac suspension concentrate(QUI)single agent and compound for strip intercropping of forage sorghum and silage corn were evaluated.The results showed that MSC,QZE and QUI all showed good safety to the intercropped forage sorghum and silage corn.The compound of 40%MSC 540 g·hm-2+48%QZE 450 mL·hm-2+25%QUI 630 g·hm-2 showed the best herbicidal effect.When it was sprayed at the 3~4 leaf stage of forage sorghum,the herbicidal effect could reach 93.64%on the total weeds in the field after 15-day spraying and 92.80%after 30-day spraying.

关 键 词：饲用高粱 青贮玉米 带状间作 苗后除草剂 

分 类 号：S514[农业科学—作物学] S548