摘要
为寻求更加有效的防除醉马草(Achnatherum inebrians)的方法,从1993～1995年,通过改变土壤氮、磷水平及引进竞争种,对醉马草的生态学特性进行了研究。结果表明醉马草的生长对土壤氮肥水平的变化比较敏感;在醉马草退化草地中补播红豆草(Onobrychis viciaefolia)后,随着红豆草株体的增大,醉马草的生长力及存活率均显著降低。因此,利用生态学的方法防除醉马草是切实可行的。
In order to search for a more efficient method than present in Achnatherum inebrians control on grassland, the ecological responses of the pest species to changed levels of soil nitrogen and phosphorus and introduced competitive plants were studied during 1993～1995. It was indicated by the results that Achnatherum was relatively sensitive to the changes in soil nitrogen and the establishment of Onobrychis viciaefolia, sown into Achnatherum—pestered pastures as a competitor, could significantly depress the growth and survival rate of the pest species. These results, therefore, would lead to a practicable biological method of Achnatherum control.
出处
《草业学报》
CSCD
1996年第2期14-17,共4页
Acta Prataculturae Sinica
基金
国家"八五"攻关项目部分内容
关键词
醉马草
红豆草
种间竞争
生态控制
Achnatherum inebrians, Onobrychis viciaefolia, intraspecific competition
