‘红富士’苹果营养诊断技术分析

‘红富士’苹果营养诊断技术分析

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时间:2019-01-31

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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.Thea

2、ctivityofSODandCATinannualcycleshowaSsinglepeakcurve,theacti嘶ofPODastwopeakscurveunderN1treatment;theactivityofSODshowastwopeakscurve,theactivityofPODandCATassinglepeakcurveunderN2treatment;underN3treatmenttheactivityofSOD、POD、CATallshowastwopeakscurve;thepeakv

3、alueoftheactivityofthesethreekindsofenzymesallappearatnewshootgrowingstageandearlyfruitswellingstage.3、Theeffectofgrowthandabsorption,distributionandutilizationofDN-UreaappliedindifferentNPproportionon3-year-old‘RedFuji’apples印lingby1N—labeledtracermethodshowed

4、thatP1,P2,P3levelswere170,255,340Kg.hm-2,descendingordereffectoftotaldryweightindifferentNFproportiontreatmenton‘RedFuji’applesaplingsWaSN1P2,N1P3,N2P1,N1PI,N2P3,N3P2,N2P2,N3P3,N1P3,eachtreatmentWaSsignificantlydifferent;descendingordereffectofChlorophyllSPADav

5、luesWaSN1P2,N2P2,NIP3,N2P1,N1P1,N3P2,N2P3,N3P1,N3P3,eachtreatmentWaSalsosignificantlydifferent;whichtheeffectofN1P2fertilizationproportionontotaldryweightandchlorophyllWaSbest.TranspirationrateindifferentNPproportiontreatmentWaSsignificantlydifferent;N2P3ratioW

6、aSmaximumof2.24mmoV(m2.s),N1P1、N1P2ratioWaSminimumof1.43mmol/(m2.s);PhotosyntheticratebyN1P3WaSmaximumof13.46umol/(mz.s),N3P3ratioWaSminimumof9.76um01.m-Z.s~.DifferentNPproportiontreatmentdidnotchangebetweenNdfforderandpartitionruleof1Nofvarioustreeorgans.The1N

7、—ureautilizationofNlP2indifferentNPproportiontreatmentismaximumupto13.6%.Insummary,N1P2indifferentNPproportiontreatmentisoptimal.4、Theeffectsofsprayingdifferentcalciumfertilizeronthe‘RedFuji’applefruitqualityandmineralelememcontentshowthatSPADvariationisconsist

8、entinthesameplaysiologicalperiod,Experimentson12-year-old‘RedFuji’appletreeweredesignedtoexplorewhicheachtreatmentallisgreaterthanCK,andthedifferencesamongtreatmentsreacheda

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