[磷矿粉在酸性土壤中溶解转化及植物有效性研究]

【磷矿粉在酸性土壤中溶解转化及植物有效性研究】.pdfDISSOLUTION,AVAILABILITY,ANDTRANSFORMATIONOF DIRECT-APPLICATIONPHOSPHATEROCKINACIDSOILS Thesissubmittedaspartialfulfilmentoftherequirementsofthe degreeofMasterofScienceinSoilChemistry Research conducted at and submitted to the Department of Soil Science and Agricultural Chemistry,College of Natural1Mechanismsofphosphateremovalbychemicalextractants 1Chroronologyofsoilphosphatefractionationmethods1Limitationsofsoilphosphatefractionationmethods 1Objectivesoftheinvestigation IlMaterialsandmethods 2Materials 2 Apatite 2 Soils 2Analyticalprocedures 2.4PercentdissolutionofKPR4Simplelinearcorrelations4 Correlationsamongsoilphosphatefractions4CorrelationbetweenextentofKPRdissolutionandresin extractableinorganicphosphatepool4Correlationsofsoilphosphatefractionswith the constant,α,intheElovichequation Con
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