黃淮海平原冬小麥—夏玉米輪作系統水氮利用效率及潛力分析.pdf

1、Y938559分類號t密級t單位代碼；10019學號：S040328’警蛹蔗嚏文普碩士學位論文黃淮海平原冬小麥一夏玉米輪作系統水氮利用效率及潛力分析PotentialAnalysisofNitrogenFertilizerandWateruseEfficiencyinWinterWheatSummerMaizeRotationSysteminHua吐gHuaiH且iPlain指導教師；，，茬霾焦；麴囂。申請學位門類級別l：：塞堂塑一一專

2、業(yè)名稱t，=土避刮壓舞僮盅熊鴦：研究方向，，。豳5基鏊掘鷹鼙稠；。所在學院；，，，囂薄量壅撼鬈肇，；2006年6月AbstractBasedonthelongtermexperimentobservationoffivetrialsofwheatmazierotationdoublecroppingsysteminHuangHuaiHalPlainfromtheyear1991to1999，Wateruseefficiency(WUE)

3、，nitrogenousfertilizeruseefficiency(NUE)andtheirpotentialwerestudiedtofindtheefficientmanagementmodeofwinterwheatsummermazierotationdoublecroppingsysteminthisareaThestudyprovidedatheoreticbasisforimprovementonagroecologi

4、calenvironment，developmentofeconomyincountryareasandsustainabledevelopmentofagricultureTheresultsaresummarizedasfoIIows：1ThewateruseefficiencyofwinterwheatandsummermaizerangedfromO70to196kgm。3and018to693kgm。respectively2

5、BoththeyieldandWUEtoseasonaltotalwaterusefromseveralfieldIoeationsshowedacurvilinearrelationshipinwinterwheatandsummermazieThepotentialWUEofwinterwheatwasstudiedaccordingtomethodofFrenchandSchultz(1984)，andtheresultshowe

6、dthattheresearchlocationwasderidedintohigheffiecientandloweffiecienttwokindsbythevalueofWUE，theWUEwasinfluencedbythewaterstressandthewaysofirrigation；thefactorsthatlimitWUEofsummermaziewl=retheamountofrainfallandthesorto

7、forganicfertilizer3ConclusionsbyfieldexperimentinHuangHuai—HalPlain，thenitrogenfertilizeruseefficiencymngedfrom236kgkg“1to3336kgkg“。inwinterwheat；forsummermazieitrangedform455kgkg“‘to3059kgkg_14ThepotentialNUEofwinterwhe

8、atandsummermaizewerelikeWUE。whichshowedtherelationshipbetweentheamountoffertilizeandNUEwasconicthepotentialNUEofwinterwheatandsummermaizewerecaculatedbythemethodofFrenchandSchultz(1984)，andtheresearchlocationwasdevidedin

9、tohigheffiecient；moderatedefficientandloweffiecientthreekindsbythevalueofNUEOrganicfertilizerhadimportantinfluncetothehighefficientIocmionTheamountandsortoforganicfertilizerhadsignificantinfluncestotheNUEofresearchlocati

10、ontooInthehigheffiecientregionofwinterwheat，themostorganicfertilizersortwascompost，andthebestamountofcompostwas18750kghm。to56200kghm～；inthehigheffiecientregionofsummermaize，themostorganicfertilizersortwaswheatstalk，andth