山东省德州市棉田杂草种类及其发生规律研究  

Species and Occurrence Pattern of Weeds in Cotton Fields of Dezhou,Shandong Province

作　　者：王兆振[1] 张书良 郭建军 刁金贤[1] 王金信[1] 

机构地区：[1]山东农业大学植物保护学院,山东泰安271018 [2]山东省德州市农业科学研究院,山东德州253015

出　　处：《杂草科学》2014年第2期14-17,共4页Weed Science

基　　金：山东省现代农业产业技术体系(编号:SDAIT-07-011-08)

摘　　要：为明确山东省德州市棉田杂草发生、危害状况,于2013年对德州地区棉田杂草种类、出土规律及其群落自然消长动态进行了调查。结果表明:山东省德州市棉田杂草有19种,隶属于13个科,其中禾本科杂草的发生种类最多,而牛筋草、鳢肠和马唐的发生数量最为显著;田间共有3个杂草出土高峰,分别集中在5月中旬、6月底和8月中旬,前两个出土高峰中杂草的出土量较大;自然混生杂草群落内的总杂草数量在6月底达到峰值且在棉花整个生长季节内呈单峰变化。To clarify the occurrence and damage of weeds in cotton fields of Dezhou, Shandong Province, we conducted a thorough investigation on the weed species,their pattern of emergence and their succession in 2013. A total of 19 weed species belonging to 13 families were found in the cotton fields of Dezhou. Of the 13 families, grassy weeds ranked the top. Eleusine indica ,Eclipta prostrata and Digitaria sanguinalis were the most common weeds. There were three peak periods of weed emergence, distributed in middle May, end of July and middle August, respectively, with most of the weeds emerging in the first and the second flushes. The total amount of the weeds in the natural community reached the peak at the end of June, and presented unimodal change in the entire cotton growing season.

关 键 词：棉花 杂草种类 发生规律 

分 类 号：S451[农业科学—植物保护]