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1、熱帶作物學(xué)報(bào)2014，35(8)：1475—1480ChineseJournalofTropicalCrops施用不同豆科綠肥對酸性土壤無機(jī)磷分級的動(dòng)態(tài)影響洪繼旺一，線琳，一，黃冬芬，黃嘉璞1,2劉國道，郇恒福I海南大學(xué)農(nóng)學(xué)院．海南?？?70228中國熱帶農(nóng)業(yè)科學(xué)院熱帶作物品種資源研究所2農(nóng)業(yè)部華南作物基因資源與種質(zhì)創(chuàng)制重點(diǎn)實(shí)驗(yàn)室海南儋州571737農(nóng)業(yè)部木薯種質(zhì)資源保護(hù)與利用重點(diǎn)實(shí)驗(yàn)室摘要采用尼龍袋法，研究酸性土壤施用4種豆科綠肥(尖葉木藍(lán)、鋪地木藍(lán)、扁豆與鏈莢豆)后，在1年內(nèi)不同時(shí)間，土壤無機(jī)磷各組分含量的動(dòng)態(tài)變化。結(jié)果表明：不同綠肥對于土壤無機(jī)磷影響的效果存在顯著差異．但總體上施用豆科
2、綠肥可顯著降低酸性土壤無機(jī)磷的總量．對于土壤無機(jī)磷各組分．施用綠肥可顯著增加土壤鐵磷(Fe—P)以及鋁磷(Al—P)的含量，但顯著降低土壤中鈣磷(Ca—P)以及閉蓄態(tài)磷(0一P)的含量；施用綠肥對于土壤無機(jī)磷的影響隨施肥時(shí)間的變化而不同關(guān)鍵詞豆科綠肥；酸性土壤；無機(jī)磷：時(shí)間動(dòng)態(tài)中圖分類號(hào)S142．1文獻(xiàn)標(biāo)識(shí)碼ATheDynamicEfectofDiferentLeguminousGreenManuresApplicationontheAcidSoilInorganicPhosphorusFractionsHONGJiwang，XIANLin，HUANGDongfen，HUANGJiapu，L
3、IUGuodao"．HUANHengfu1CollegeofAgronomy,HainanUniversity,Haikou，Hainan570228,China2TropicalCropsGeneticResourcesInstitute，ChineseAcademyofTropicalAgricuhuralSciences／KeyLaboratoryofCropGeneResourcesandGermplasmEnhancementinSouthernChina~KeyLaboratoryofConservationandUtilizationofc∞5口GeneticResources
4、，MinistryofAgriculture，Danzhou,Hainan57l737，ChinaAbstractTherearecommonproblemssuchasphosphorusdeficiency，aluminumtoxicity，highacidityandSOoninthetropicalacidsoils，andtheapplicationofgreenmanureisanefectivemeasuretosolvetheseproblems．Thephosphorusinthesoilwillbechangedaftertheapplicationofgreenmanu
5、re，whilethesoilinorganicphosphorus，asanimportantphosphoruspoolinthesoil，maybechangedaftertheapplicationofgreenmanure．Theresearchonthechangescanprovidetheresearchreferenceandevidenceforthescientificapplicationofgreenmanureinthetropicalacidsoil．Anylonbagmethodwasusedtoresearchthedynamicchangeoftheaci
6、dsoilinorganicfractionscontentduringoneyearperiodaftertheapplicationofthe4tropicalgreenmanures[IndigoferazollingerianaMiq．，lndigoferaspicataForssk，Lablabpurpureus(Linn．)Sweet，Aicarpusvaginalis(Linn．)DC．】．Theresultindicatedthattheeffeetofthedifierentgreenmanuresapplicationontheacidsoilinorganicphosp
7、horusfractionswasdiferent，butasawhole，theapplicationofthegreenmanurecoulddecreasesignificantlythecontentofthesoilinorganicphosphorus；AndthecontentoftheFe-pandAI-pincreasedsignificantlyduetotheapplicationoft
