江汉平原麦田杂草调查

Weed survey in wheat fields in Jianghan Plain.

运用倒置“Ｗ”９点取样法对江汉平原麦棉套作农田杂草调查，结果表明该地区麦田杂草有１４科２３种，其中禾本科杂草占２７％，阔叶杂草占６９％，莎草科占４％。相对多度达１０以上的麦田杂草依次有猪殃殃、婆婆纳、野燕麦、半夏、通泉草、狗牙根、卷耳等７种，其中猪殃殃、婆婆纳两种双子叶杂草的相对多度达５０和４０，为当地麦田优势种群。

Field weed survey was conducted using an inverted W-pattern with 9 sampling points in Jianghan Plain. Of the 23 weed species recorded in wheat feilds, 27% accounted for monocots and 69% for dicots. Based on the analysis of their relative abundance, catchweed (Galium aparine) and field speedwell (Veronica didyma) were the most abundant weeds in the area. It also showed that wildoat (Avena fatua) and elephent ear (Pinellia ternata) were becoming important weeds in the area.