不同品种玉米间作对其农艺性状及产量的影响

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关键词：玉米；间作；农艺性状；产量；玉米生长率(CGR)；叶面积指数(LAI)中图分类号：S513 文献标志码：A 文章编号:2097-2172(2025)07-0660-05doi:10.3969/j.issn.2097-2172.2025.07.012

Effects of Intercropping with Different Maize Varieties on the AgronomicTraitandYield

DI Dan,LI Gang,LI Li (Baiyin Agricultural Technology Service Centre, Baiyin Gansu 73O9OO, China)

Abstract: Inorder to provideabasis for the widespread promotionof theimprovementof maize yield through intercropping ofdiferentvaietiesofaizeinBiineaanexperimentaldemonstrationascaedoutinXiaouan Villge,Baojowsip, PingchuanDistrict,BaiyinCityandtheexperimentalvarietieswereJinsui915(JS915),Denghai6O5(DH6O5)andXianu1225 (XY1225),whichwerewidelypopularzedinBaiinreaandteefectsofintercroppngofferentvarietisofmazeoagomic traitsandyieldsrecompaedthrough3varietisof2:2:intereropping,1:1:intercroppingandmoocultureResultsshowdtat the yield of Jinsui 1915 and Xianyu 1225 varieties in 2:2:2 intercropping were 14.54% and 11.22% higher than that of monoculture, respectively,but the yield of Denghai 605 was 9.51% and 16.79% lower than that of monoculture after intercropping at 2:2:2 and 1: 1:1 ,respectively,which may bedue to theshort growth periodof Denghai 6O5.Thedistribution of canopystructure in the 2:2:2 intercroppingmodewasmoreationalat tepopulationlevel,whichcouldimprovetheutilizationateoflightnergyandprootete growth of 3 maize varieties.Therefore,when increasing the yield through 2:2:2 intercropping or 1:1:1 intercropping with diffrent maizevarieties,itisadvisable tochoose maize varieties withconsistentgrowth periodsandadoptthe2:2:2 planting pattern.

Key Words: Maize; Intercropping; Agronomic trait; Yield; Crop growth rate (CGR); Leaf area index (LAI)

2023年白银市玉米种植面积11.96万 hm2 ，占全市粮食作物播种面积的 44.77% ，是当地种植面积最大的农作物[1]。（剩余9027字）