硫磺與磷礦粉配合施用的肥效研究.pdf

1、東北農(nóng)業(yè)大學(xué)碩士學(xué)位論文硫磺與磷礦粉配合施用的肥效研究姓名：尹云鋒申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：土壤學(xué)指導(dǎo)教師：許景鋼2002.5.1尹云鋒英文摘要20026StudyonEffectofApplicationofElementalSulfurandPhosphateRockonFertilizerEfficiencyABSTRACTSoilcultureexperimentandframeexperimentwerecarriedoutto

2、studyeffectsofapplicationofelementalsulfurandphosphaterockAccordingtophosphaterocksresourceandsoilconditionofChinafromsustainabledevelopmentanddevelopinghighly—effectivecomplexfertilizerweweretoproduceandspreadapartofmix

3、edfertilizeroilsulfurandphosphaterocksthatwereapplieddirectlyandsuppliedmorephosphorusresourceforagriculturalproductionThuswemightreduceenvironmentalpollutionandimproveecologicalconditionofsoilandcropqualityTheresultssho

4、wedasfollows：Whetherlowsulfurlevelorhighsulfurlevel，theapplicationofphosphaterockwithsulfurcouldincreasesoilavailablePanddecreasesoilpHsignificantlyApplyingS—oxidizingbacteriaaffectedoilsoilavailablePsoilpH，thecontentofe

5、veryfractionofinorganicphosphorus，soybeanyield，soybeanproteinandtotalphosphorusofsoybean，butaffectedinsignificantlyApplyingsoilphosphorusactivatoraffectedonthemsignificantlyandeffectsofapplicationofSoxidizingbacteriawith

6、soilphosphorusactivatorwasthebestJiangBaifanandGuYichu’sFractionationofsoilinorganicphosphoruswasusedtodivideinorganicsoilphosphorusofblacksoilintosixpartsAmongthem，CaPwaspredominantinfourgrowingperiodsDuringthewholegrow

7、ingperiodsofsoybean，thechangeoftrendsonfractionsofsoilinorganicPshowedthatCa2PCarPAIPandO—Pdecreased，butCal0PandFe—PincreasedCa2PwasthemostavailabletosoybeaninblacksoilAI—PwasalsotransformedintoavailablePdirectlyCas，Pand

8、Fe—PwereimportantandavailablephosphorusandinfluencedsoilavailablePbytransformingintoCa2一PandAI—PCal0PandO—PwaspotentialphosphorussourceandinfluencedavailablePindirectlybytransformingintoCa8Pbuthadlittlecontributiontoavai