目录1前言..........................................................11.1研究背景....................................................11.2国内外水肥一体化技术应用现状................................21.3本研究的目的及意义..........................................32试验材料及方法................................................32.1试验区基本状况..............................................32.2试验方案....................................................42.3试验管理....................................................42.4测定指标及方法..............................................43结果与分析....................................................53.1不同处理对土壤地温的影响....................................53.2不同处理对土壤养分的影响....................................53.1.1不同处理对土壤硝态氮的影响................................53.2.2不同处理对土壤有效磷的影响................................63.2.3不同处理对土壤水溶性磷的影响..............................73.2.4不同处理对土壤pH的影响...................................73.2.5不同处理对土壤水溶性盐总量的影响..........................83.3不同处理对蕃茄产量的影响....................................84讨论..........................................................94.1水肥一体化技术对环境的保护作用..............................94.2水肥一体化技术肥料利用率的促进作用..........................94.3水肥一体化技术对设施菜田的增产作用..........................95结论..........................................................9参考文献....................................................10致谢.........................................................12附录1：相关英文文献............................................12附录2：英文文献中文译文........................................12摘要水肥一体化技术是将灌溉与施肥融为一体的农业新技术。本研究通过研究不同灌溉条件下设施菜田土壤地温、土壤中硝态氮含量、土壤中有效磷、水溶性磷含量、土壤中水溶性盐含量、土壤PH值变化情况以及设施农田农作物的产量以判断不同灌溉条件对农作物利用肥料的影响情况。结果表明，同漫灌施肥法相比，滴灌施肥法能提高设施菜田土壤地温0.5℃-1℃，而且滴灌施肥法能明显降低土壤中硝态氮和水溶性盐含量，能大大提升土壤中有效磷和水溶性磷的含量，但对土壤PH值的影响不大。在各处理组中，A-1处理（6天灌1次，灌溉定额为12m3/亩/次）的番茄产量最高，说明滴灌施肥技术具有很好的防污染、提高肥料利用率和增产作用。关键词：设施菜田；水肥一体化；硝态氮；有效磷ABSTRACTFertigationtechnologyisintegratedintoirrigationandfertilizationofagriculturaltechnology.Thisresearchthroughresearchundertheconditionsofdifferentirrigationsoiltemperature,soilnitratenitrogen,effectivephosphorusinsoil,watersolublephosphoruscontent,watersolublesaltcontentofsoils,soilpHchangesandfacilityfarmlandcropyieldtojudgedifferentirrigationconditionsoncroputilizationoffertilizereffect.Theresultsshowthat,comparedwithfloodirrigationfertilizationmethod,dripirrigationfertilizationcouldimprovesoiltemperature0.5℃to1℃,anddripirrigationfertilizationmethodcansignificantlyreducethenitrateinthesoilandwatersolublesaltcontent,dripirrigationfertilizationmethodcangreatlyenhancetheeffectivephosphorusinsoilandwatersolublephosphoruscontent,buthaslittleeffectonsoilpH.Ineachtreatmentgroup,A-1treatment(6days1timesirrigation,irrigationquotais12m3/mu/time)havethehighestyieldoftomato,descriptionofdripfertigationhasgoodantipollution,improvingtheutilizationratioofthefertilizerandincrea...
