封杀结合技术对直播稻田杂草防治效果  

Control effect of technology combining seal and elimination for weeds in direct-sowing rice fields

作　　者：孟鹏翔 朱燕 王潇璇 商进涛 MENG Pengxiang;ZHU Yan;WANG Xiaoxuan;SHANG Jintao(Agricultural Technology Extension Center of Linping District,Hangzhou City,Hangzhou 311100,Zhejiang)

机构地区：[1]杭州市临平区农业技术推广中心,浙江杭州311100

出　　处：《浙江农业科学》2024年第11期2665-2667,共3页Journal of Zhejiang Agricultural Sciences

摘　　要：直播稻田杂草种类多、密度大、出草持续时间长、危害重。随着规模化种植面积不断扩大,田间管理比较粗放,导致土壤封闭除草效果不理想。由于长期大面积使用苄嘧磺隆、氰氟草酯、五氟磺草胺等除草剂,杂草抗药性问题日趋突出,“一封一杀”技术难以有效控制杂草为害,严重影响粮食生产,需要探索直播稻田杂草防除新技术。为此,该研究进行土壤封闭与茎叶处理相结合的直播稻田杂草防治试验。结果表明,药后20 d各处理对耳叶水苋、日照飘拂草、异型莎草以及总草的防治效果均达90%以上。Weeds in direct-sowing rice fields show that there are multiple types,high density,long grass emergence duration,and serious harm.With the continuous expansion of large-scale planting areas,the field management is relatively extensive,resulting in unsatisfactory soil sealing and weed control effects.Due to the long-term and widespread use of herbicides such as bensulfuron methyl,cyhalothrin,and pentafluorosulfonamide,the problem of weed resistance has become increasingly prominent.The“one seal,one elimination”technology is difficult to effectively control weed damage and seriously affects grain production.Therefore,it is necessary to explore new technologies for weed control in direct-sowing rice fields.This study conducted a weed control experiment in direct-sowing rice fields by combining soil sealing with stem and leaf treatment.The results showed that after 20 days of treatment,each treatment had a control effect of over 90%on Ammannia arenaria,Fimbristylis miliacea(L.)Vahl.,Cyperus difformis L.,and total weeds.

关 键 词：直播稻田 杂草 封杀结合 防治效果 

分 类 号：S451.1[农业科学—植物保护]