施用不同豆科绿肥对酸性土壤无机磷分级的动态影响-论文.pdf

《施用不同豆科绿肥对酸性土壤无机磷分级的动态影响-论文.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、热带作物学报2014，35(8)：1475—1480ChineseJournalofTropicalCrops施用不同豆科绿肥对酸性土壤无机磷分级的动态影响洪继旺一，线琳，一，黄冬芬，黄嘉璞1,2刘国道，郇恒福I海南大学农学院．海南海口570228中国热带农业科学院热带作物品种资源研究所2农业部华南作物基因资源与种质创制重点实验室海南儋州571737农业部木薯种质资源保护与利用重点实验室摘要采用尼龙袋法，研究酸性土壤施用4种豆科绿肥(尖叶木蓝、铺地木蓝、扁豆与链荚豆)后，在1年内不同时间，土壤无机磷各组分含量的动态变化。结果表明：不同绿肥对于土壤无机磷影响的效果存在显著差异．但总体上施用豆科

2、绿肥可显著降低酸性土壤无机磷的总量．对于土壤无机磷各组分．施用绿肥可显著增加土壤铁磷(Fe—P)以及铝磷(Al—P)的含量，但显著降低土壤中钙磷(Ca—P)以及闭蓄态磷(0一P)的含量；施用绿肥对于土壤无机磷的影响随施肥时间的变化而不同关键词豆科绿肥；酸性土壤；无机磷：时间动态中图分类号S142．1文献标识码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