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195Vol19No5200410JournalofYunnanAgriculturalUniversityOct.2004李少明,赵平,范茂攀,高世昌,郑毅(,650201):,,,5753%,4702%.121%,1456%.:;;;;:S51301;S565101:A:1004-390X(2004)05-0572-03NitrogenUptakeandUtilizationinIntercroppingSystemofMaizeandSoybeanLIShao-ming,ZHAOPing,FANMao-pan,GAOSh-ichang,ZHENGYi(CollegeofResourceandEnvironment,YunnanAgriculturalUniversity,Kunming650201,China)Abstract:Potexperimentswereconductedtoinvestigatethenitrogenuptakeandutilizationandbiomassyieldinsoybeanandmaizeintercroppingormonoculturesystem.Theresultsshowedthattheobviousfacil-itationofnitrogenuptakeandbiomasswasgotbyintercrop.Thenitrogenuptakeamountandbiomassofin-tercroppedmaizeincreased5753%and4702%respectively,comparedwiththosemonocropedmaize,Thenitrogenuptakeamountandbiomassofintercroppedsoybeanwere121%and1456%lowerthanthosemonosoybean.Keywords:maize;soybean;intercroppingsystem;nitrogenutilization;biomass,,,[1],,,,,[2],,[3],,,,[4],[5,6],,,,:2004-03-10:(2003FCCFC01A009):(1969-),,,,111,12,13(),1465mg/kg,561mg/kg,1692mg/kg,492g/kg,pH608.25mm,8kg.,:Ca(NO3)2150mg/kg,KH2PO4150mg/kg,KCl100mg/kg,MgSO47H2O50mg/kg,CuSO45H2O5mg/kg,ZnSO47H2O5mg/kg141413,(A)(B)(C),20,5,4142200144,500mL/,100~300mL/,18%~20%419,5,3,143(19d,37d,47d,61d,77d)5:,,,,144[7],[8]221(1)(1),(19d,37d,47d,61d,77d)4662%,4611%,6147%,7399%,4983%.(1)(1),,121%.1Fig1ChangingofNuptakeinintercroppedandmonoculturedcrops1Tab1VarianceanalysisofNaccumulationofintercroppedandmonoculturedcropsF()F005F0011238**559137006**:222()Fig2Changingofbiomass(dryweight)inintercroppedandmonoculturedcrops(2)(2),,(19d,37d,47d,61d,77d,)5735,:2371%,3536%,5640%,6036%,3755%.(2),1456%,2Tab2VarianceanalysisforbiomassofintercroppedandmonoculturedcropsF()F005F0017628**771212012**:3,,,,,,,;1,1,,,,,1456%,,,,,,,,VA,[9],/,25~155kg/hm2[10],[11],,,,,,,[12],,,,,,,,,,,,[][1],,,.[J],2000,7(3):219-221[2],.//[J],2000,5(5):12-16[3],,.[J].,1997,15(2):37-43.[4].[M].:,2000.[5],,.[A].[C].2001.12,16-17.[6],./[J].,1998,7(2):18-22.[7].[M].:,1989.[8],,./[J].,1999,10(2):197-200.[9],,.[J].,1996,11(2):56-61.[10]CHIARIELLON,HICKMANJC,MOONEYJA.En-domycorrnizalRoleforInterspecificTransferofPhosphorusinaCommunityofAnnualPlants[J].Science,1982,217:941-943.[11],,,.[J].,2000,6(2):140-146.[12].[M].:,2000.57419