百色市不同区域秋植玉米田杂草种类及其优势种间差异

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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）01-0016-10

Differences in Weed Species and Their Dominant Types in Autumn - Cultivated Corn Fields Across Baise City

ZHAO Limei，HUANG Zhanwei，LU Junshan，LIN Youlin，NIE Genrong，MA Jia，LI Mingsheng，TAN Tingzhan （Baise Corn Research Institute，Baise 533OoO，China）

Abstract：This studyinvestigated theweed species compositionanddominanttypes inautumn-cultivated corn fields acrossthreedistinctregionsof Baise City，Guangxi（Youjiang River Valey，SouthernandNorthern Mountainous Areas），usinganinverted“W”sampling method forfield surveys folowedbystatistical analysis.Theresults showed that autumn-cultivatedcorn fieldsinYoujiang RiverValleyhadtherichest weeddiversity，involving1O3species from88 genera across 39 families，with 6 dominant species，namely Ageratum conyzoides，Digitaria sanguinalis，Eleusine indica， Cyperus rotundus，Bidens pilosa，and Echinochloa colona.Southern MountainousArea had weedsfrom 31 families totaling 63 species，with 4dominant species，namelyA.conyzoides，D.sanguinalis，E.indica，andB.pilosa.Northen Mountainous Area hadthe fewest weed species，with 37 species from21 families，and 5 dominant species，namely D sanguinalis，E.indica，Luduigia prostrata，C. rotundus，and Stelaria aquatica.In summary，there are certain differences in weed species compositionanddominantspecies incorn-cultivated fieldsacrossdifferentregions of Baise City.Therefore，whenimplementing weedcontrol measures，itisnecessarytoformulateregionalizedcontrolstrategies

tailored to differentareas.

Key Words：Baise City;different regions;autumn-cultivated corn fields; weed species;dominant weed

百色市位于广西西部，全市总面积约为3.63万 km2 ，是广西辖区面积最大的地级市[1]。（剩余9917字）