湖南省玉米田杂草发生现状调查

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中图分类号： S451.22+2 文献标志码：A 文章编号：1003-935X（2026）01-0026-10

Investigation on Current Situation of Weed Occurrence in Corn Fields of Hunan Province

ZHANG Xin 1，2 ，BAI Zhendong1²，JIN Chenzhong1， TANG Bin²，LI Zuren²，GUO Jun1 （1.Hunan Provincial Key Laboratory for Biology and Control of Weeds/Hunan University of Humanities ， Science and Technology，Loudi 4170oo，China； 2.HunanProvincialKeyLboratoryforBolgyandControlof Weeds/Hunan AcadeyofAgricultural Sciences，Changsha405，Cina）

Abstract：To clarify curent situation and characteristicsof weeds incorn fieldsof Hunan Province，a statistical survey was conducted in2O24 using an inverted“W”five-point sampling method.The results showed that a total of185 weed species belongsto 59familiesand136genera，with dominant families including Asteraceae（30 species，16.21%of total），Poaceae（16 species，8.64%of total），andFabaceae （10 species，5.40%of total）.The dominant weed species in corn fieldsofHunan rovinceincludeDigitariasanguinalis，Echinochloacrusgli，E.colonum，Ageratumconyzoides， Alternantheraphiloxeroides，Cyperus iria，andSetariaviridis.Among them，thedominant weeds incentral Hunanwere mainly Artemisia annua，Xanthium strumarium，and Phyllnthus urinaria;in northern Hunan，they were mainly A. philoxeroides，Bidens frondosa，and Celosia argentea；insouthern Hunan，they were mainly A.conyzoides， Lysimachiachristinae，andAmaranthusviridis;inwestern Hunan，theyweremainlyD.sanguinalis，E.crusgali，nd

Cayratia japonica;and in eastern Hunan，they were mainly Euphorbia hypericifolia and S .viridis，D. sanguinalisand A. philoxeroides were the most dominant species，with relative abundances of 16.14% and 13.01% ，respectively. Key words：corn field;weed investigation; occurrence patern;relative degree;degree of advantage ;population change

湖南省作为我国玉米主产大省之一，在玉米种植领域具有重要地位。（剩余5386字）