种植密度和施肥方式对马铃薯产量形成及经济效益的耦合效应

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关键词：马铃薯（SolanumtuberosumL.）；种植密度;施肥方式；产量;经济效益;耦合效应

中图分类号：S532;S352.2；S147.3 文献标识码：A

文章编号：0439-8114（2025）12-0033-05

DOI：10.14088/j.cnki.issn0439-8114.2025.12.005 开放科学（资源服务）标识码（OSID）：

Coupling effect of planting density and fertilization method on potato yield formation and economicbenefits

ZHANG Cui-cuila，WANG Yan-pingla，YIChun-yanla，CHEN Guan-taol，CHENQing-dongla WANG Yang-mei²，WANG Xielb，LUO Yong-xialb

（laInstituteoflantoteo.sieAualsodEviontnadflralie ，China；2.LiangshanYiAutonomousPrefectureAcademyofAgriculturaliences，Xichang65Ooo，chuanChina）

Abstract：Sixpotato（SolanumtuberosumL）varieties，ncludingFeiwuruitaGoyuanN.2，GaoyuanNo.8QngshuNo9oigial seed，Heimeiren（purplepotato）andWuyangyu，ereusedasexperimentalmaterials，ndself-reservedseedsofQingshuNo.9was usedascontrol.Twoplantigdensities，highdensity（57plants/hm2）andlowdensity（4050Oplants/m2），weresetosudtheir efects onpotatoyieldandconomicbenefits.Aditionall，using Wuyangyuasthematerial，sixfertilizationtreatments weresetup with two plantingdensities，andtheefectsoffertlizationandplantingdensityontheyieldofWuyangyuwereanalyzed.Teresults showedthat，exceptforHeimeiren（purplepotato），theper-plantyieldunderlow-densityplantingwassignificantlyhigherthanthat underhigh-densityplanting.Theefectofplantingdensityonyieldperhectarevariedbyvariety.Underhigh-densityplanting，some varietiesexhibitedhigheryieldsperhectarethanunderlow-densityplanting，withQingshu9originalsed，Qingshu9self-reserved seed，andHeimeirenshowinghighlysignificantyieldincreasesunderhighdensityWuyangyuachievedthehighestyieldof37976.12 （204号 kg/hm2 when planted at high density with the application of organic fertilizer + compound fertilizer + 2.5 g/plant potassium sulfate. Amongall varieties，Qingshu9original seed under high-densityplantingachieved the highest yield of 62094.45kg/hm2 .Intermsof economicbenefits，Heimeiren（purplepotato）performedthebest，withnetprofitsof47303.40yuan/hm²and59134.20yuan/hm²under low and high densities，respectively，followed by Wuyangyu.

Keywords：potato（SolanumtuberosumL.）；plantingdensity；fertilizationmethod;yield；economicbenefits；couplingeffect

凉山彝族自治州（简称凉山州）地处四川省西南部，因特殊的生态地理环境，水土资源丰富，光照条件充足，优越的自然资源有利于马铃薯（Solanumtu-berosumL.的种植。（剩余7266字）