文献类型： 会议论文

第一作者： J. L. Wu

作者： J. L. Wu ¹ ; H. C. Zhou;

作者机构： 1.Indtitue of Plant Protection, Jiangsu Academy of Agricultural Sciences, Nanjing, China

关键词： paddy weed;shift of weed community;herbicide

会议名称： The 18th Asian-Pacific Weed Science Society Conference v.1

主办单位：

页码： 113-118

摘要： The mixture of acetochlor and bensulfuron is highly effective against most of annual and perennial weeds. The density of dominant damage weeds such as Echinochloa varinalis, Sagittaria pygmaea, Eclipa prostrata, Ammania baccifera, Juncellus serotinus, Potamogeton distinctus and Lindernia prostrata in transplanted paddy decreased markedly and the components of the weed community changed because of continuous application of the mixture herbicide. The five-year experimental results demonstrated that application of the herbicide once every year for five years compared to four, three, two and one year without application treatments, the difference between total weed density, coverage and biomass were all significant. The application treatment for five times compared to one-application, the total weed density increased by 108.5%; the coverage by 111.5%; the biomass by 109.9% respectively.

分类号： S3