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农业环境科学学报2008,27(4):1617—1622 JournalofAgro—EnvironmentScience 不同施肥措施对镉污染土壤上菊花生长 及其品质的影响 张晓萍,宗良纲,郑建伟,沈莉萍,蒋培 (南京农业大学资源与环境科学学院,江苏南京210095) 摘要:中药材的产量及其品质与施肥管理有着密切的关系。本试验通过盆栽试验研究了cd污染土壤上施加钠磷、钙磷、有机肥、 钠磷+有机肥和钙磷+有机肥对菊花生长及其品质的影响。结果表明,单施钠磷虽能提高菊花根系活力,降低菊花叶片cd含量,同 时会降低菊花叶片叶绿素含量,对菊花酶活性、蛋白质含量影响不大。钙磷在蛋白质含量、根系活力和叶绿素含量指标上的效果优 于钠磷。有机肥增强菊花根系活力,有利于叶绿素合成,能提高菊花产量和蛋白质含量。除钙磷和有机肥的配合施用下根系活力指 标较单施钙磷的效果差外,不同磷源和有机肥的配施处理发挥了磷素和有机肥各自的优点,均比单独施用方式的效果好。研究结果 对于指导中药材种植的施肥管理具有参考价值。 关键词:Cd;钙磷;钠磷;有机肥;酶 中图分类号:S147.34文献标识码:A文章编号:1672—2043(2008)04—1617—06 EfectsofDiferentFertilizationsonChrysanthemumGrowthandItsQualityonCdPollutedSoil ZHANGXiao—ping,ZONGLiang—gang,ZHENGJian—wei,SHENLi—ping,JIANGPei (CollegeofResourcesandEnvironmentalScience,NanjingAgriculturalUniversity,Nanjing210095,China) Abstract:PotexperimentwascarriedouttostudytheefectsofNaphosphorus,Caphosphorus,organicfertilizer,Naphosphorus-organicfer— tilizerandCaphosphorus-organicfertilizeronchrysanthemumSgrowthanditsqualityonCdpollutedsoil.Theresultsshowedthattheim— provementefectsvariedwiththediferentfertilizerduetotheirdiferentcharactersandmechanisms.RootactivitywasimprovedandCdcon— tentinleavesdecreasedwiththeNaphosphorustreatment,butthechlorophyllcontentinleaveswasdecreasedsimultaneouslyandtherewas nosignificantefectontheactivityofenzymeandproteincontent.CaphosphorustreatmentwassuperiortoNaphosphorustreatmentinin— dexesofproteincontent,rootactivityandchlorophyllcontent,butnosignificantdiferencewasoccu/Tedbetweenthetwophosphorustreat- mentinotherindexes.OrganicfertilizertreatmentincreasedchrysanthemumSfloweryield,whichrose80percentcomparedtotheCK. Chlorophyllcontent,proteincontentandrootactivityalsogotarisewiththeNaphosphorustreatment.CombinedapplicationofCaphospho— mswithorganicfertilizerwasbetterthanindependentapplicationofCaphosphorus.exceptrootactivityindex.CombinedapplicationofNa phosphoruswithorganicfertilizerwasmoreefectivethanindependentapplicationoftheorganicfertilizerandNaphosphorusinallofindex- es,whichhadbestimpr