不同施肥处理对鲁西北高产农田土壤真菌群落的影响周晓琳,王薇,王玉霞,赵同凯,董艳芳,杜梦杨,刘佰霖,王富建,李洪杰∗(德州市农业科学研究院,山东德州253015)摘要通过在鲁西北潮土区高产农田11年有机肥替代化肥定位试验,研究了有机肥部分替代化肥对小麦-玉米轮作体系中土壤养分及土壤真菌的影响。结果表明,有机肥替代50%的ONPK处理显著提高了土壤养分、酶活性和真菌数量。土壤速效磷较CK和NPK处理分别升高2.16倍和35.3%,土壤全氮含量提高42.4%和21.0%。ONPK处理的有机质含量较CK和NPK处理分别提高了55.2%和33.9%。冗余分析表明,速效磷、有机质和全氮含量是有机肥替代后真菌群落组成变化的主要调控因素。土壤真菌数量以ONPK处理最高,较CK和NPK处理分别增加了90.0%和1.11倍。土壤真菌优势群落依次为子囊菌门(Ascomycota)(49.1%~62.9%)、接合菌门(Zygomycota)(18.9%~38.5%)、担子菌门(Basidiomycota)(5.9%~8.6%)、壶菌门(Chytridiomycota)(2.1%~3.4%)。综上所述,增施有机肥可通过调节真菌种间互作关系,促进土壤养分累积,最终实现土壤可持续生产能力。关键词不同施肥处理;土壤养分;土壤真菌中图分类号S154.3文献标识码A文章编号0517-6611(2023)03-0159-04doi:10.3969/j.issn.0517-6611.2023.03.036开放科学(资源服务)标识码(OSID):EffectsofDifferentFertilizationTreatmentsonSoilFungalCommunitiesinHigh-yieldFarmlandinNorthwestShandongProvinceZHOUXiao-lin,WANGWei,WANGYu-xiaetal(DezhouAcademyofAgriculturalSciences,Dezhou,Shandong253015)AbstractTheeffectsofpartialreplacementoforganicfertilizeronsoilnutrientsandsoilfungiinwheat-maizerotationsystemwerestudiedthrough11-yearpositioningexperimentinhigh-yieldfarmlandinnorthwestShandongProvince.Theresultsshowedthatthereplacementof50%ONPKtreatmentwithorganicfertilizersignificantlyincreasedsoilnutrients,enzymeactivitiesandfunginumber.ComparedwithCKandNPKtreatments,soilavailablePincreasedby2.16timesand35.3%,andsoiltotalnitrogenincreasedby42.4%and21.0%,respectively.ComparedwithCKandNPK,theorganicmattercontentofONPKtreatmentincreasedby55.2%and33.9%,respectively.Redundancyanal-ysisshowedthatthecontentofavailablephosphorus,organicmatterandtotalnitrogenwerethemainregulatoryfactorsforthechangeoffungalcommunitycompositionafterorganicfer...
