不同熟期玉米品种春夏套作对全株饲用营养价值的影响

Vol.30,No.5pp.443448May,2004ACTAAGRONOMICASINICA3052004544344811,31,2131X(1,271018;2,471003;3,276800)14(LD14)22(YD22)13(YD13),,,,,:LD14YD22YD13,YD22PYD13;,YD22PYD13YD13PYD13YD13PYD22;;;;;:S513EffectsofDifferentMaturityMaizeCultivarsRelay2croppinginSpring2sowingandSummer2sowingontheNutritiveValuesofWholePlantforFeedingNINGTang2Yuan1,LIZeng2Jia1,3,JIAONian2Yuan1,2,ZHAOChun1,SHENJia2Xiang3,WANGHao1(1CollegeofAgronomy,ShandongAgriculturalUniversity,Taian271018,Shandong;2CollegeofAgronomy,HenanUniversityofScience&Technology,Luoy2ang471003,Henan;3RizhaoAgriculturalSchool,Rizhao276800,Shandong,China)AbstractThreedifferentmaturitycultivars,prematureLuyuandan14(LD14),mediummatureYedan22(YD22)andlatematureYedan13(YD13),werechosentostudytheeffectsofdifferentmaturitymaizecultivarsrelay2croppinginspri2ng2sowingandsummer2sowingonbiomass,grainyield,andnutritivevaluesofwholeplantforfeeding1Theresultsindicat2edthatrelay2croppingwithdifferentmaturesummer2sowingmaizecultivars,therewerenoobviouseffectsonbiomass,grainyield,andnutritivevalues(crudeproteinyield,crudefiberyield,crudefatyield)ofthesamespring2sowingmaizeculti2vars1Butrelay2croppingwithdifferentmaturespring2sowingmaizecultivarscouldobviouslyaffectthebiomass,grainyield,andnutritivevaluesofthesamesummer2sowingmaizecultivars1Theorderofbiomass,grainyield,andnutritivevaluesofthesamesummer2sowingmaizecultivarswas:relay2croppingwithspring2sowingLD14relay2croppingwithspring2sowingYD22relay2croppingwithspring2sowingYD131Fromtheevaluationofgrainyieldofthewholeyear,YD22PYD13wasthehighesttreatment1Butaccordingtobiomass,grainyield,andcrudeproteinyield,crudefiberyield,crudefatyieldofthewholeyear,thebetteroneswere:YD13PYD13,YD13PYD22,andYD22PYD131KeywordsMaize;Relay2cropping;Yield;Crudeprotein;Crudefiber;Crudefat,,,[1,2],,CO2,,[310]AbateTedla19941995,,,,,[5]CarrPM(1998),,[6]X:(39870524):(1976-),,,,E2mail:[e-mail]3:Tel:[phone];E2mail:[e-mail]():2002212231,Accepted():20032052071,[7],,5197%13138%,,,[8,9],,,[10],,,,,1200020011811gPkg,113gPkg,01152gPkg,010451gPkg,01117gPkghm2450kg450kg300kg,150kg,;450kg,14(LD14)22(YD22)13(YD13),15cm,,160cm,40cm,90m2,67500Phm2315,625,,6,;,;;22111,3,,,,LD14YD1312d,,2,,;,,,1Table1Comparisonofdevelopmentprogressbetweendifferentspring2sowingmaizecultivars(monthPday)CultivarsSowingEmergencePre2tassellingTasselMaturityTotal(d)YD133P153P276P26P107P24131YD223P153P275P266P87P22129LD143P153P275P146P77P181252Table2Comparisonofdevelopmentprogressbetweendifferentsummer2sowingmaizecultivars(monthPday)TreatmentSowingEmergencePre2tassellingTasselMaturityTotal(d)YD13PYD138P118P2310P20117YD13PYD228P108P2010P9106YD13PLD148P98P1910P5102YD22PYD138P68P1610P12109YD22PYD226P256P298P68P1410P198YD22PLD148P58P1310P299LD14PYD138P38P1210P11108LD14PYD228P18P1210P3100LD14PLD148P18P1010P310021221211,(3),YD1344430YD22,LD14,3,LD14,,YD13YD22LD14,;YD22LD14,212124,,:YD13YD22LD14,:YD13YD22LD14;,,;,,,,3Table3Biomassoforgansindifferentspring2sowingmaizecultivars(kgPhm2)CultivarLeafSheathStalkHullCobGrainTotalYD13190186223868521190707414264AaYD2211116881908806842572011074BbLD14122555115588241163510910430Bc:1%5%,3Notes:Thefigureswiththesamecapitalandsmalllettershavenosignificantdifferenceat1%and5%level,respectively1Thedataarebasedondryweightsofcorrespondingorgans1Itsthesameforthefollowingtables1Becausetherearenosignificantdifferencesbetweenthesamespring2sowingmaizecul2tivarrelay2croppingwiththreedifferentsummer2sowingmaizecultivars,thedataabovearetheaveragesofthethree14Table4Biomassandgrainyieldsofdifferentmaizecultivarsinthegrowingseasonofsummer2sowingandthewholeyear(kgPhm2)TreatmentLeafSheathStalkHullCobGrainTotalWholeyearBiomassGrainyieldYD13PYD131132602146544575948929295Dd23559Aa14823BbYD13PYD22948436125147374649548808De23072Bb14968BbYD13PLD14955428122661780441038133Ef22397De14035CcYD22PYD1310845921435539859555310062Cc21136Df15890AaYD22PYD2213925851681743890477110062Cc21136Df13895CdYD22PLD141192611144050091549599617Dd20691Cd13820CdLD14PYD1314556461793509993723612632Aa23062Bb14095CcLD14PYD22153269319416431114653312456Aa22886Bc13439DeLD14PLD14172967519168211092593712168Bb22598Cd13339Ef21213,:,:YD13YD22LD14,YD13PYD13YD13PYD22LD14PYD13,3YD22PYD13,YD13PYD22YD13PYD13,3(4)LD14PYD22LD14PLD14LD14PYD13,:YD13,YD22;,:YD13YD22LD14,213,,21311,,(5)YD13,,YD22LD144412%3818%LD14YD22,,YD221214%5445:5Table5Crudeproteinyieldsofdifferentspring2sowingmaizecultivars(kgPhm2)CultivarLeafSheathStalkHullCobGrainTotalYD1325916189170179170811211161408621141588175AaYD221191783313313417549112461317181581101186BbLD141251562613411314439114321358071861144170Bc213126,YD13,YD13YD22LD14;YD22,LD14YD13YD22;LD14,YD22YD13LD14,:LD14,,;YD22;YD13,LD14,;YD22,;YD13,,,213133LD14PYD22YD13PYD13LD14PYD13;3YD22PYD22YD22PYD13YD22PLD14,YD22PYD22:LD14;YD13;YD22,6Table6Crudeproteinyieldsofdifferentmaizecultivarsinthegrowingseasonofsummer2sowingandthewholeyear(kgPhm2)TreatmentLeafSheathStalkHullCobGrainTotalWholeyearYD13PYD131151254217089118231472418653312382817Ee2417145BbYD13PYD221191392116686