干旱地区农业研究2011，Vol.29Issue(2)：101-104,4.
保护性耕作制度下青海麦油轮作田间杂草群落组成调查
Survey on species composition of weed community at wheat-rape rotation fields in conservation tillage system of Qinghai province
摘要
Abstract
Weed survey was conducted by sampling methods of inverted W-pattern to determine the species composition and structure of weed communities in wheat-rope rotation fields in conservation tillage system. The results showed that among 55 weed species belonging to 22 families, 4 species were considered as dominant weeds, including Elsholtzia densa Benth, Chenopodium album, Polygonum convolvlus L and thlaspi arvense Linn.; 9 species were regional dominant weeds; 8 common weed species and 34 normal weed species. The overall abundance of Avenafatua Linn( Elsholtzia densa Benth), Sonchus arvensis Linn. And Chenopodium album were relatively high and were the main components of weed communities at the wheat-rope rotation fields in conservation tillage system.关键词
麦油轮作/保护性耕作/杂草群落/物种组成/优势度Key words
wheat-rape rotation/ conservation tillage/ weed community/ species composition/ relative abundance分类
农业科技引用本文复制引用
魏有海,郭青云,冯俊涛..保护性耕作制度下青海麦油轮作田间杂草群落组成调查[J].干旱地区农业研究,2011,29(2):101-104,4.基金项目
国家"十一五"科技支撑项目(2006BAD08A09XX) （2006BAD08A09XX）
