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ID:32095423
大小:6.52 MB
页数:52页
时间:2019-01-31
《‘红富士’苹果营养诊断技术-研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、‘红富士’苹果营养诊断技术研究N3>NI>N2,howeverbaggingnumber,singleplantyieldandsolublesugarcomemhadtheoppositeresult(N2>NI>N3);thesolublesolidscontentfrombigtosmallWaSNI>N2>N3;itCallbedrewaconclusionthatN2treatmentWaSbeneficialtothephysiologicalindicatorsof‘RedFuji’apple.TheactivityofSODandCATi
2、nannualcycleshowaSsinglepeakcurve,theacti嘶ofPODastwopeakscurveunderN1treatment;theactivityofSODshowastwopeakscurve,theactivityofPODandCATassinglepeakcurveunderN2treatment;underN3treatmenttheactivityofSOD、POD、CATallshowastwopeakscurve;thepeakvalueoftheactivityofthesethreekindsofen
3、zymesallappearatnewshootgrowingstageandearlyfruitswellingstage.3、Theeffectofgrowthandabsorption,distributionandutilizationofDN-UreaappliedindifferentNPproportionon3-year-old‘RedFuji’apples印lingby1N—labeledtracermethodshowedthatP1,P2,P3levelswere170,255,340Kg.hm-2,descendingordere
4、ffectoftotaldryweightindifferentNFproportiontreatmenton‘RedFuji’applesaplingsWaSN1P2,N1P3,N2P1,N1PI,N2P3,N3P2,N2P2,N3P3,N1P3,eachtreatmentWaSsignificantlydifferent;descendingordereffectofChlorophyllSPADavluesWaSN1P2,N2P2,NIP3,N2P1,N1P1,N3P2,N2P3,N3P1,N3P3,eachtreatmentWaSalsosign
5、ificantlydifferent;whichtheeffectofN1P2fertilizationproportionontotaldryweightandchlorophyllWaSbest.TranspirationrateindifferentNPproportiontreatmentWaSsignificantlydifferent;N2P3ratioWaSmaximumof2.24mmoV(m2.s),N1P1、N1P2ratioWaSminimumof1.43mmol/(m2.s);PhotosyntheticratebyN1P3WaS
6、maximumof13.46umol/(mz.s),N3P3ratioWaSminimumof9.76um01.m-Z.s~.DifferentNPproportiontreatmentdidnotchangebetweenNdfforderandpartitionruleof1Nofvarioustreeorgans.The1N—ureautilizationofNlP2indifferentNPproportiontreatmentismaximumupto13.6%.Insummary,N1P2indifferentNPproportiontrea
7、tmentisoptimal.4、Theeffectsofsprayingdifferentcalciumfertilizeronthe‘RedFuji’applefruitqualityandmineralelememcontentshowthatSPADvariationisconsistentinthesameplaysiologicalperiod,Experimentson12-year-old‘RedFuji’appletreeweredesignedtoexplorewhicheachtreatmentallisgreaterthanCK,
8、andthedifferencesamongtreatmentsreacheda
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