不同行距配置下玉米种内间作对地上-地下部互作及产量机制的研究进展

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关键词玉米间作；行距配置；根冠协调；干物质积累；产量

中图分类号S513文献标识码A

文章编号 0517-6611（2026）01-0001-05

doi：10.3969/j.issn.0517-6611.2026.01.001

开放科学（资源服务）标识码（OSID）：

Progressin theStudyofAbove-groundand Below-ground InteractionsandYieldMechanisms of Intra-rowMaize IntercroppigUnler Different Row Spacing Configurations

PU Quan-bo1²ZHONGYi-dan，LUO Sheng-sheng²etal（1.Nanchong Academyof AgriculturalSciences，Nanchong，Sichuar 637000;2.China WestNormal University，Nanchong，Sichuan 637001）

AbstractIntrarowintercroppinginaeexhibitspotentialinoptiingpopuatiospatialstructure，thebyhancinesoueeffciencyandacingsaeieldireaispetiallatestahprgresotsit binationsunderqalowndwidaoowspacigogratios，fousingoncaoptrcture，otosthticcharacteristisotialdistributionandyieldformationmechanisms.Studieshaveshowtatappropraterowspacingcofiguration（suchswde-narrowrow planting）canincreasetheleafareaindex（LAI）andimproveligtintereptioninthemidleandlowercanopylayersbycreatinga“wavelike"canopyarhiteure，tusehaningteoverallotosyteticfiiencyftepopulation.Atteeti，suchonfiguatiospr mote deeper root development，increase root length density in the 0-40 cm soil layer and improve the root system’s capacity to acquire water and nutrients. Coordinated regulation of planting density and row spacing can result in a yield increase of up to 34.2% under certain threshold conditions（e.g. 97 500 plants/hm² with a 56cm+24 cm wide-narrow row configuration）. Future research should focus on constructing a synergisticmdelof“densityrospacingvariety”tolucidateabovegoud-belowgronditeractionchanisms，erebyprovidingthical basis and technical support for high-yield and high-efficiency maize cultivation.

Key wordsMaize intercropping;Row spacing configuration;Root-shoot coordination;Dry mater accumulation;Yield

玉米作为世界三大粮食作物之一，其稳产增产是保障全球粮食安全的关键[1。（剩余12824字）