江汉平原棉麦套种方式下小麦施肥模型的建立及其.doc

江汉平原棉麦套种方式下小麦施肥模型的建立及其.doc江汉平原棉麦套种方式下小麦施肥模型的建立及其应用研究摘要:采用氮、磷、钾3个养分因子,每个因子分4个施用梯度,共14个处理的无重复不完全大田试验设计“3414”方案,对湖北省潜江市棉麦套种方式下的小麦施肥技术进行了田间试验,建立了江汉平原棉麦套种方式下小麦的施肥模型,并在此基础上,提出了区域棉麦套种区土壤养分丰缺指标与小麦氮、磷、钾施用量的修正值,推荐了合适的小麦施肥量为N130~210kg/hm2、P2O540~70kg/hm2、钾K2O40~60kg/hm2。关键词:小麦;施肥模型;“3414”肥料试验;江汉平原中图分类号:;;S131(263)文献标识码:A文章编号:0439-8114(2012)14-2932-06 EstablishmentandApplicationofFertilizerModelforWheatInterplantedwithCottoninJianghanPlain YANGLi1,DINGHeng-hu2,FANXian-peng1,JIAPing-an3,LISheng-yong3,WUJia-qiong2,LIUKe-zhi2, FUYong2,BAIShu-ping2,XUShun-fa3 (,SoilandFertilizer,HubeiAcademyofAgriculturalSciences,Wuhan430064,China; ,Qianjiang433100,Hubei,China; ,Qianjiang433128,Hubei,China.) Abstract:‘3414’fieldexperiment(nitrogen,phosphorusandpotassiumas3nutrientelements,4gradientofeachelement,pletetreatmentsweredesignedtostudythefertilizationtechniquesforwheatinterplantedwithcottoninQianjiangcity,,basedonwhichthesoilnutrientplentiful-lackindexinwheat-cottoninterplantingfieldinthedistrict,correctionvaluefortheapplicationvalueofnitrogen,,mendedas130~210,40~70and40~60kg/hm2,respectively. Keywords:wheat;fertilizermode;‘3414’fert