不同种植模式对燕麦、麦蚜及天敌的影响

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中图法分类号：S433.3 文献标识码：A 文章编号：000-2324（2026）01-0037-09

Abstract：This study mainlyadopts threeplanting paterns foroatcultivation （Avena sativa）：intercropping，mixedcropping， and monocropping.The crops used for intercropping and mixed cropping are spring rapeseed，common vetch，and hairy vetch，oat monocropping is thecontrol.Thisstudy investigates the effects of different croppingpatterns on the growth periods，nutrionalalityfreshgrassyield，grainyield，andthedensityofwheataphidnaturalenemies，andcompaestheir controleffectsagainstaphids.The folowingresultsareobtained：Thethree intercropping treatmentshaveno significant efect onthe growth periods ofoat，whilethe three mixedcroppngtreatments delaytheharvestperiod by1-4days.Mixed cropping with commonvetchorhairy vetch inoat fields significantly increases the contents of crude protein （CP），acid detergent fiber（ADF），andneutral detergentfiber（NDF）inoat.Noneofthesixtreatments exertsasignificantinfluenceon oat grassand grain yield.During theoatbooting stage，theaphid populationdensity inoatfields mixed withspringrapesed， common vetch，or hairyvetch is significantlylower thanthat inmonocroppedoat.Theaphid population density inthe three intercroppingtreatmentsshowsnosignificant diferencecomparedtothecontrol.Thenaturalenemydensityis thehighest in oat fieldsmixed withhairy vetch.The natural enemy densities inoat fields mixed with spring rapeseed orcommon vetch，as wellas inrapeseed intereropped withoat，areallsignificantlyhigher than inthecontrol.During the flowering stage，the aphid populationdensitiesofoat inall six treatmentsare lower than inthecontrol，and thenatural enemydensityis the highest inoat intercropped withhairyvetch.Duringthe filingstage，thewheataphid populationdensityof thethree mixed cropping treatments islowerthanthat inthecontrol，andthesethree paterns exhibitrelativelyhighcontroleffectsagainst wheat aphids，reaching approximately 52.81%62.23%

Keywords： Avena sativa; intercropping; mixed cropping;wheat aphid; natural enemy

燕麦AvenasativaLinnaeus是禾本科、燕麦属的一年生草本植物。（剩余11011字）