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施磷水平对玉米磷素积累及土壤磷酸酶活性的影响.docx

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施磷水平对玉米磷素积累及土壤磷酸酶活性的影响 Title:TheInfluenceofPhosphorusApplicationLevelsonPhosphorusAccumulationinMaizeandSoilPhosphataseActivity Abstract: Phosphorus(P)isavitalnutrientforplantgrowthanddevelopment,particularlyforcropslikemaizethathaveahighdemandforphosphorus.Theobjectiveofthisstudywastoinvestigatetheimpactofdifferentphosphorusapplicationlevelsonphosphorusaccumulationinmaizeandsoilphosphataseactivity.Apotexperimentwasconductedusingacompletelyrandomizeddesignwiththreereplicates.Thetreatmentsincludedthreephosphorusapplicationlevels:low(30mg/kgsoil),medium(60mg/kgsoil),andhigh(90mg/kgsoil).Phosphorusaccumulationindifferentpartsofthemaizeplantandsoilphosphataseactivityweremeasuredatvariousgrowthstages.Theresultsdemonstratedthatphosphorusapplicationsignificantlyinfluencedphosphorusaccumulationinmaizeandsoilphosphataseactivity.Thehighestaccumulationofphosphorusinmaizewasobservedinthehighphosphorustreatment,whilethelowestaccumulationoccurredinthelowphosphorustreatment.Similarly,soilphosphataseactivitywashighestinthehighphosphorustreatmentandlowestinthelowphosphorustreatment.Thesefindingssuggestthatphosphorusapplicationlevelplaysacrucialroleinphosphorusaccumulationinmaizeandtheactivityofsoilphosphataseenzymes. Introduction: Phosphorusisanessentialmacronutrientrequiredforplantgrowth,development,andseveralphysiologicalprocesses,includingenergytransfer,photosynthesis,andcelldivision.Maize(ZeamaysL.)isaphosphorus-sensitivecrop,withahighdemandforphosphorusthroughoutitslifecycle.Insufficientphosphorusavailabilityinthesoilcanlimitmaizegrowthandultimatelydecreasecropyields.Adequatephosphorusapplicationis,therefore,crucialtoensureoptimalplantgrowthanddevelopment. Soilphosphorusavailabilitydependsonseveralfactors,includingsoilproperties,pH,organicmattercontent,andthepresenceofphosphataseenzymes.Soilphosphataseenzymesplayacrucialroleinthemineralizationoforganicphosphorus,makingitavailabletoplants.Phosphataseenzymescatalyzethehydrolysisofphosphateestersandanhydrides,releasinginorganicpho