为了安全、高效地防除杂草，采用样方调查法对内蒙古武川地区燕麦田间杂草的种类和分布情况进行了调查，结果表明：内蒙古武川地区燕麦田杂草共13科22属27种，其中阔叶杂草21种，占91.30%；禾本科杂草2种，占8.70%。主要杂草有狗尾草、藜、沙蓬、猪毛菜、苣荬菜等。免耕田内杂草种类多于常规耕作，免耕不覆盖的杂草发生严重；免耕覆盖的杂草发生较轻。

In order to control weeds safely and efficiently, the quadrat survey procedure was used to investigate weed species and their distribution in oats fields in Wuchuan County of The Inner Mongolia Autonomous Region. The results showed that there were 27 species belonging to 22 genera of 13 families. Of all species recorded, broadleaved weeds (21 species) accounted for 74.29%, the grass family (2 species) for 14.29%. The main weeds were Setaria viridis (L.) Beauv., Chenopodium a1bum Linn., Agriophyllum squarrosum (L.) Moq., Salsola collina Pall., Herba Sonchi Brachyoti. The weed species in the no-tillage field were more than that in conventional tillage filed. The weeds in the no-tillage with out mulch field were serious, but the weeds in the no-tillage mulch field were fewer.