花生学报2023,52（2）：22-27JournalofPeanutScience,Vol.52,No.2,2023DO1:10.14001/j.issn.1002-4093.2023.02.003不同氮肥用量与有机肥配施对花生衰老和结瘤的影响王春晓1,高秀兰²,李文金3,矫岩林1*，于天一4,沈记浦4，吴正锋4，郑永美4*（1.山东省烟台市农业科学研究院，山东烟台265500；2.山东省沂南县大庄镇农业综合服务中心，山东临沂276305；3.泰安市农业科学研究院，山东泰安271000；4.山东省花生研究所，山东青岛266100）摘要：池栽条件下研究了不同用量氮肥和有机肥单施及二者配施对花生衰老及结瘤的影响，结果表明：氮肥、有机肥或二者配施，能提高叶片中SOD、POD、CAT活性及Pr含量，降低MDA含量，延缓植株衰老进程，增加叶面积系数；不同施肥处理对延缓花生衰老的作用为有机无机肥配施>有机肥>氮肥；单施氮肥抑制根瘤的形成和发育，有机肥可在一定程度上减轻氮肥对根瘤的抑制作用；施肥可促进花生生长发育，株高和千克果数对施肥的反应大于单株结果数，不同处理花生产量表现为有机无机肥配施>氮肥有机肥，花生增产主要得益于施肥后植株衰老进程放缓、荚果饱满度提高；有机肥在一定程度上可弥补化肥氮的作用，低量氮肥加有机肥可作为花生化肥减施的优化施肥组合。关键词：花生；氮肥；有机肥；衰老；结瘤中图分类号：S565.206.2；Q945.13EffectsofDifferentNitrogenFertilizerRatesCombinedwithOrganicFertilizeronPeanutSenescenceandNodulationWANGChun-xiao',GAOXiu-lan?”,LIWen-jin",JIAOYan-lin*,YUTian-yi',SHENPu",WUZheng-feng",ZHENGYong-mei*(1.YantaiAcademyofAgriculturalSciences,Yantai265500,China;2.DazhuangTovenAgriculturalComprehensiveSeroiceCenterofYinanCounty,Linyi276305,China;3.TaianAcademyofAgr.Sci.,Taian271000,China;4.ShandongPeanutResearchInstitute,Qingdao266100,China)Abstract:Theeffectsofsingleandcombinedapplicationofnitrogenfertilizerandorganicfertilizeronpeanutsenescenceandnodulationwerestudiedunderpoolplantingcondition.Theresultsshowedthatnitrogenfertilizer,organicfertilizerorcombinedapplicationcouldincreaseSOD,POD,CATac-tivitiesandPrcontentinleaves,reduceMDAcontent,delayplantsenescenceprocess,andincreaseleafareacoefficient.Theeffectsofdifferentfertilizationtreatmentsondelayingpeanutsenescencewereintheorderoforganicandinorganicfertilizercombin...
