摘要
对郑州地区长期不同施肥结构下麦田杂草群落的物种构成和杂草密度等指标进行了调查。结果表明,长期不同施肥方式对小麦-玉米和小麦-大豆2种轮作方式中麦田杂草群落结构及多样性指数的影响存在差异,这可能是长期不同施肥处理影响了土壤的营养成分,以及不同杂草对养分的吸收积累能力不同所致。另外,像猪殃殃、荠菜等杂草表现出了对土壤特定养分的一定依赖性。
A survey was conducted in Zhengzhou on species constitution and the densities of weeds community which is under long term different fertilization.The paper gives analysis of the diffe-rence of weeds constitution and diversity index existing in the stage of wheat in both wheat-corn rotation and wheat-soybean rotation under long term different fertilization.It is due to the diffe-rent kinds of available soil nutrients which may have different impacts on the growth of different weeds.For example,the Galium aparine L.and Capsella bursa-pastoris Medic showed certain dependence on specific soil nutrient.
出处
《河南农业科学》
CSCD
北大核心
2010年第6期67-70,共4页
Journal of Henan Agricultural Sciences
基金
河南省科技攻关项目(0524050005)
