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长期秸秆还田和有机肥施用对双季稻田冬春季杂草群落的影响
引用本文:李昌新,赵锋,芮雯奕,黄欠如,余喜初,张卫建.长期秸秆还田和有机肥施用对双季稻田冬春季杂草群落的影响[J].草业学报,2009,18(3):142-147.
作者姓名:李昌新  赵锋  芮雯奕  黄欠如  余喜初  张卫建
作者单位:南京农业大学应用生态研究所,江苏,南京,210095;江西省红壤生态研究所,江西,进贤,331717;南京农业大学应用生态研究所,江苏,南京,210095;中国农业科学院作物科学研究所,北京,100081
基金项目:中国农业科学院项目,国家"十一五"科技支撑计划项目 
摘    要: 借助双季稻田长期秸秆还田和有机肥施用的定位试验,于2007 年对稻田冬季、春季杂草群落进行监测。结果发现,农田管理方式对双季稻田冬春季杂草群落影响显著,长期秸秆还田和有机肥施用显著降低杂草多样性。秸秆冬季覆盖还田显著降低稻田杂草密度和生物量,而长期施用猪粪则显著提高稻田冬春杂草密度和生物量。有机肥晚稻时期施用对杂草的促进效应显著高于早稻时期施用的,秸秆冬季覆盖还田对杂草的抑制效应显著高于夏季旋耕还田的。不同处理下冬春季稻田杂草均以日本看麦娘为优势种群,田间相对密度平均达90% 以上,其次为稻槎菜和水竹叶等杂草。上述结果说明,秸秆还田和有机肥施用对冬闲田冬春季杂草群落的调控效应显著。

关 键 词:秸秆还田  有机肥  稻田  杂草群落  生物多样性
收稿时间:1900-01-01;

The long-term effects of returning straw and applying organic fertilizer on weed communities in a paddy field with a double rice cropping system
LI Chang-xin,ZHAO Feng,RUI Wen-yi,HUANG Qian-ru,YU Xi-chu,ZHANG Wei-jian.The long-term effects of returning straw and applying organic fertilizer on weed communities in a paddy field with a double rice cropping system[J].Acta Prataculturae Sinica,2009,18(3):142-147.
Authors:LI Chang-xin  ZHAO Feng  RUI Wen-yi  HUANG Qian-ru  YU Xi-chu  ZHANG Wei-jian
Institution:LI Chang-xin1,ZHAO Feng1,RUI Wen-yi1,HUANG Qian-ru3,YU Xi-chu3,ZHANG Wei-jian1,2(1.Institute of Applied Ecology,Nanjing Agricultural University,Nanjing 210095,China,2.Institute of Crop Sciences,Chinese Academy of Agricultural Sciences,Beijing 100081,3.Jiangxi Institute of Red Earth,Jinxian 331717,China)
Abstract:In 2007,the results of a long-term fertilizer experiment were used to study the characteristics of weed communities in a paddy field,where crop straw was returned and organic fertilizer applied since 1985(Jinxian County,Jiangxi Province).Weed species biodiversity was significantly reduced under long-term straw return and organic fertilizer application.Long-term straw return through mulching reduced weed density and biomass,but they were increased during the field fallow by organic fertilizer application.The...
Keywords:straw returning  organic fertilizer  paddy field  weed community  biodiversity  
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