Drapeau, R.

Seguin, Philippe

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings 21st International Grassland Congress / 8th International Rangeland Congress Productivity and Persistence of Kura Clover-Grass Mixtures Philippe Seguin McGill University, Canada R. Drapeau Agriculture and Agri-Food Canada, Canada Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/1-3/19 The 21st International Grassland Congress / 8th International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. 瞯]118　　瞯　MultifunctionalGrasslandsinaChang ingWorld　VolumeⅠ　Grasslands/Rang elandsResourcesandEcology———EcologyofGrasslands/Rang elandsProductivityandpersistenceofKuraclover‐g rassmixturesP.Seg uin1andR.Drap eau21Dep artmentofPlantScience,MacdonaldCamp usofMcGillUniversity,21111LakeshoreRoad,Sainte‐Anne‐de‐Bellevue,QC,Canada,H9X3V9.E‐mail:p hilipp e.seg uin＠mcg ill.ca,2Ag ricultureandAg ri‐FoodCanada,SoilsandCrop sResearchandDevelop mentCentre,Normandin,QC,Canada,G8M4K3Keywords:botanicalcomposition,Caucasianclover,persistence,Trif oliumambig uumM.Bieb.,yieldIntroductionThereiscurrentlyaneedforpersistentforagelegumesthatcouldbeusedinpermanentpasturesofeasternCanada.Speciescurrentlyusedalllackpersistencewhengrazed.Kuraclover(KC,Trif oliumambig uumM.Bieb.)isarhizomatousspecieswhichpotentialhasbeenreportedinseveralregions(LabergeandSeguin,２００５) .ExceptionalpersistenceandhighforagequalityarecharacteristicsmakingKCagoodcandidateforuseinpermanentpastures(LabergeandSeguin,２００５) .AnexperimentwasestablishedtocompareKCandwhiteclover(WC,T.rep ensL.)contributionstototalforageyieldinpost‐seedingyearswhenmixedwithdifferentgrassspeciesanddetermineifKCcouldbeusedtoestablishdesirablelegume:grassswardsinpermanentpasturesofeasternCanada.　　　Figure1Forag ey ieldofwhiteclover( a)andKuraclover( b)mixtureswithg rasses( Normandin2003seeding );SBG,smoothbromeg rass;KBG,Kentuckyblueg rass;TIM,timothy;ORC,orchardg rass;TF,tallf escue;MBG,meadowbromeg rass;SSC,solo‐seededclover.MaterialsandmethodsPlotswereestablishedin２００３and２００４inSainte‐Anne‐de‐Bellevue(４５°２５′N,７３°５６′W)andNormandin(４８°５１′N,７２°３２′W),QC,Canada.Treatmentsincludedsolo‐seededKCandWC,andmixturesofeachcloverspecieswithsmoothbromegrass(SBG,BromusinermisLeyss),Kentuckybluegrass(KBG,Poap ratensisL.),timothy(TIM,Phleump ratenseL.),orchardgrass(ORC,Dacty lisg lomerataL.),tallfescue(TF,FestucaarundinaceaSchreb.),andmeadowbromegrass(MBG,Festucap ratensisSchreb.).Totalforageyieldandclover,grass,andweedyieldcontributionsweredeterminedfrom２００４to２００７inclusively.Plotswereharvestedapproximatelyevery３０days,resultingin３or４harvestsperyear.ResultsanddiscussionResultsfromatotalof１４sites—y earsclearlydemonstrateKCpotentialineasternCanada.Inthefirstpost‐seedingyear,cloverandtotalforageyieldofKCandKC‐g rassmixturesweresimilarorslightlylowerthanthoseofWC(Figure１) .However,fromthesecondp ost‐seedingyear,yieldsweregreaterforKCandalmostallKC‐g rassmixturesthansimilarWCtreatments.WCcontributiontototalforageyieldinmixtureswasoftennegligibleinthefourthp ost‐seedingyear,comparedtoalmost５０％forKC.KCperformedwellwithallgrassesevaluated,bestmixturesvaryingdependingonthesiteoryear.ConclusionsKCpotentialforpermanentpasturesofeasternCanadahasbeendemonstrated.WerecommendtheinclusionofKCinthelistofforagespeciesrecommendedforuseinpermanentp astureslocally.KCcouldbeconsideredanalternativetowhiteclover.ReferenceLaberge,G.,Seguin,P.,(２００５) .LetrèfleKura:unelégumineusepourp备turagespermanents[inFrench].CahiersAg ricultures１４( ５) ,４２９‐４３５.N SBG 04 0 0 KBG 04 ... :::,- TIM 04 ~ < ORC 04 (1) TF 04 "' en MBG 04 SSC 04 N SBG 05 0 KBG 05 0 "' TIM 05 :::,-ORC 05 ~ < TF 05 (1) MBG 05 "' en SSC 05 SBG 06 "' 0 KBG 06 0 0) TIM 06 :::,- ORC 06 ~ < TF 06 (1) MBG 06 "' en SSC 06 N SBG 07 0 KBG 07 0 __, TIM 07 :::,-ORC 07 ~ < TF 07 (1) MBG 07 "' en SSC 07 kg of dry matter per ha 0 0 0 --"' 0 0 0 "' 0 0 0 -.. 0 0 0 "' 0 0 0 O> 0 0 0 ID __, 0 0 oo kg of dry matter per ha 0 0 0 "' 0 0 0 "' 0 0 0 .. 0 0 0 "' 0 0 0 O> 0 0 0 )> I DI :;EO(") g ; s[ ~ V, ~ __, 0 0 0 

Productivity and Persistence of Kura Clover-Grass Mixtures

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Productivity and Persistence of Kura Clover-Grass Mixtures

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