广西玉米主产区田间主要杂草调查简报  

Investigation on Main Weeds in Field of Main Maize Production Areas in Guangxi

作　　者：李石初[1] 唐照磊[1] 杜青[1] 磨康 

机构地区：[1]广西农科院玉米研究所/国家玉米改良中心广西分中心,广西南宁530006

出　　处：《现代农业科技》2016年第4期102-103,共2页Modern Agricultural Science and Technology

基　　金：广西农业科学院基本科研业务专项资助项目(桂农科2013YZ21;2014YZ19;2015YT29)

摘　　要：玉米是广西第二大粮食作物,为了掌握玉米田间杂草发生分布为害情况,为玉米生产防除杂草提供理论依据,特开展调查研究,结果表明院广西玉米主产区春玉米田间杂草总覆盖率在1.8%~42.5%之间,主要杂草有马唐、稗草、醡浆草、反枝苋、香附子、胜红蓟、鸭跖草、空心莲子草、小飞蓬、苍耳、鬼针草、荠菜等12种杂草,其中马唐、香附子、空心莲子草是恶性杂草。Maize is the second largest food crop in Guangxi,in order to master the occurrence and distribution of infestation of weeds in maize field and for maize production in weed control provides theoretical basis, this research was developed. The results showed that the weeds total coverage rate in Guangxi maize producing region in spring corn field was between 1.8% to 42.5% ,weeds included 12 kinds of weeds,Digitaria sanguindis, Echinochloa crus -golli , Oxalis comiculata,A maranthus retroflexus , Cyperus rotundus ,A geratum conyzoides , Commelina communis ,A lternanthera philoxeroides , Conyza canadensis ,Xanthium sibiricum,Bidens pilosa, Capsella bursa etc.,among of the weeds ：Digitaria sanguindis , Cyperus rotundus ,A lternanthera philoxeroides were malignant weed.

关 键 词：玉米主产区 杂草 调查 广西地区 

分 类 号：S451[农业科学—植物保护]