摘要
对怒江干热河谷区潞江坝木薯地杂草种类组成、生长型和生态习性进行调查。结果表明,该木薯地主要杂草有19科48种,其中,外来入侵杂草有9科17种。对木薯地杂草的田间均度、田间密度、田间频率和相对多度分析结果得出,木薯地主要杂草为马齿苋(Portulaca oleracea L.)、龙葵(Solanum nigrum L.)、赛葵[Malvastrum coromandelianum(L.)Gurcke]、胜红蓟(Ageratum conyzoides L.)和香附子(Cyperus rotundus),相对多度分别为30.84%、25.22%、22.41%、19.25%和18.19%,研究结果为重要经济作物木薯田间杂草控制提供科学依据。
Investigation was conducted in Lujiangba Cassava Fields in Yunnan Dry-Hot Area Valley. The results showed that 19 families and48 species of weeds remarked in cassava field. Among them,alien invasive weed had 9 familes and 17 species,among which the dominant weeds were Portulaca oleracea L.,Solanum nigrum L.,Malvastrum coromandelianum( L.) Gurcke,Ageratum conyzoides L. and Cyperus rotundus with 30. 84 %,25. 22 %,22. 41 %,19. 25 % and 18. 19 % relative abundance,respectively by field all degrees,field density,field frequency and relatively abundance in cassava field. The study could provide scientific basis for weeds control in cassava fields.
出处
《西南农业学报》
CSCD
北大核心
2015年第6期2541-2545,共5页
Southwest China Journal of Agricultural Sciences
基金
国家木薯产业技术体系资助项目(CARS-12-hnhgx)
关键词
木薯
杂草
种类
调查
Cassava
Weeds
Weeds species
Investigation