DOI:10.11829/j.issn.1001-0629.2022-0668孟翔，刘伟，褚皓清，颜安，谢开云，孙伶俐，赵越.灌溉、磷肥及AM真菌互作对紫花苜蓿地土壤养分的影响.草业科学,2023,40(5):1220-1231.MENGX,LIUW,CHUHQ,YANA,XIEKY,SUNLL,ZHAOY.Effectsofirrigation,phosphatefertilizers,andarbuscularmycorrhizalfungalinteractiononsoilnutrientcontentinalfalfafields.PrataculturalScience,2023,40(5):1220-1231.灌溉、磷肥及AM真菌互作对紫花苜蓿地土壤养分的影响孟翔，刘伟，褚皓清，颜安，谢开云，孙伶俐，赵越（新疆农业大学草业学院/新疆草地资源与生态重点实验室/西部干旱荒漠区草地资源与生态教育部重点实验室，新疆乌鲁木齐830052）摘要：土壤养分是影响紫花苜蓿(Medicagosativa)优质高产的重要因素。为探究灌溉、磷肥和丛枝菌根(AM)真菌对紫花苜蓿土壤养分的影响，本研究设置调亏灌溉(RDI)和定额灌溉(QI)两个灌溉处理，磷肥0(P0)、60(P1)、120(P2)和180kg·hm−2(P3)4个肥力梯度，以及AM(土壤不灭AM真菌)和–AM(土壤灭AM真菌)两种处理。结果表明：定额灌溉处理提高了根际土壤和非根际土壤有效磷含量，施磷肥和AM处理均显著增加了土壤中全磷和有效磷含量；在0－20、20－40和40－60cm土层紫花苜蓿根际土壤有效磷含量均大于土壤有效磷含量，说明丛枝菌根真菌对紫花苜蓿根际土壤和非根际土壤有效磷含量有重要贡献。关键词：调亏灌溉；定额灌溉；施磷；丛枝菌根；根际土壤；土壤全磷；土壤有效磷文献标志码：A文章编号：1001-0629(2023)05-1220-12Effectsofirrigation,phosphatefertilizers,andarbuscularmycorrhizalfungalinteractiononsoilnutrientcontentinalfalfafieldsMENGXiang,LIUWei,CHUHaoqing,YANAn,XIEKaiyun,SUNLingli,ZHAOYue(CollegeofGrasslandSciencesofXinjiangAgriculturalUniversity/XinjiangKeyLaboratoryofGrasslandResourcesandEcology/KeyLaboratoryofGrasslandResourcesandEcologyforWesternAridDesertRengion,MinistryofEducationUrumqi,Xinjiang830052,China)Abstract:Soilnutrientcontentisanimportantfactoraffectingthequalityandhighyieldofalfalfa(Medicagosativa).Inordertoexploretheeffectsofirrigation,phosphatefertilizers,andarbuscularmycorrhizal(AM)fungionsoilnutrientsinalfalfafields,twoirrigationtreatments,namelyregulateddeficitirrigation(RDI)andquotairrigation(QI),fourfertilitygradientsgeneratedbyappl...
