中国草地学报2025，Vol.47Issue(4)：94-101,8.DOI:10.16742/j.zgcdxb.20240328
红三叶田土壤封闭除草剂的筛选
Screening of Herbicides for Soil Sealing in Red Clover Field
摘要
Abstract
Weeds are important factors affecting the growth of red clover at seedling stage.In order to screen out soil sealing herbicide for red clover at seedling stage,11 soil sealing herbicides were selected for field experiment,the weed control efficacy of different herbicides and the safety of red clover were evalu-ated.The results indicated that the application of 5%imazethapyr,80%flumetsulam and 75%thifensulfuron-methyl had little effect on the germination of red clover,and the germination rate was higher than that of the control(CK).Among the them,the fresh weight and dry weight of red clover treated with 5%imazethapyr increased by 196.56%and 181.55%respectively compared to the control,with signifi-cant differences(P<0.05),indicating its safety for the seedling stage of red clover.The analysis of weed control effect showed that 90%acetochlor had good control effect on weeds after 30 days,and the control effect on Amaranthus retroflexus,Chenopodium glaucum and gramineous weeds was 83.60%,82.01%and 88.87%,respectively,the second was 5%imazethapyr,and the weed control effect was more than 78.57%after 30 days of application.The principal component analysis showed that 5%imazethapyr had the highest D value of 0.764,which indicated that 5%imazethapyr had the best application effect.There-fore,1800 mL of 5%imazethapyr per hectare was a soil sealing herbicide suitable for red clover seedlings.关键词
红三叶/土壤封闭除草剂/杂草防除/安全性/综合评价Key words
Red clover/Soil sealing herbicide/Weed control/Safety/Comprehensive evaluation分类
农业科技引用本文复制引用
任忠伟,于林清,王文颖,李俊,黄帆..红三叶田土壤封闭除草剂的筛选[J].中国草地学报,2025,47(4):94-101,8.基金项目
内蒙古自治区科技计划项目"牧草豆禾带状间行混播提质丰产栽培技术研发与示范"(2023YFHH0029) （2023YFHH0029）
鄂尔多斯市科技重大专项"乡土草种质资源高效开发利用研究与示范"(ZD20232312) （ZD20232312）
省部共建草原家畜生殖调控与繁育国家重点实验室开放课题(2021KF0304) （2021KF0304）
