title: [Effects of tillage method and herbicide on cornfield weed community].
abstract: By the method of community ecology, this paper surveyed the weed community in a cornfield at the Shenyang Experimental Station of Ecology, CAS, and studied the effects of tillage method and herbicide on the weed composition, species diversity, and biomass at the experimental site. The results showed that the dominant weed species in the cornfield were Eriochloa villosa, Abutilon theophrasti, Bidens frondosa and Commelina communis, of which, Eriochloa villosa had the highest important value. In non-tillage field without herbicide application, the weed community had larger biomass, higher richness (S) and concentration (C), but lower species diversity (D) and species evenness (J). Herbicide could decrease weed species and inhibit biomass growth significantly in non-tillage field. It was clear that tillage method and herbicide could affect the weed composition, diversity and stability significantly.
authors.affiliation: Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China. liufamgming924@hotmail.com
authors.forename: Fangming
authors.initials: F
authors.lastname: Liu
authors.forename: Wenju
authors.initials: W
authors.lastname: Liang
authors.forename: Dazhong
authors.initials: D
authors.lastname: Wen
mesh_terms: D000383:Agriculture / Q000379:methods*; D031176:Bidens / Q000254:growth & development; D034822:Commelina / Q000254:growth & development; D003710:Demography; D006540:Herbicides / Q000494:pharmacology*; D006109:Poaceae / Q000145:classification / Q000254:growth & development*; D003313:Zea mays / Q000254:growth & development*
chemical_list: D006540:Herbicides