种植密度与有机肥互作对玉米籽粒产量和经济效益的影响

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关键词：玉米；种植密度；有机肥；产量；经济效益

中图分类号：S513；S147.2 文献标志码：A 文章编号：2097-2172（2025）07-0676-05

doi：10.3969/j.issn.2097-2172.2025.07.014

Effects of Interaction Between Planting Density and Organic Fertilizer on Maize Grain Yield and Economic Benefit

CAO Yonggang1，LU Jianying²， WAN Xuhua1 （1.，744ooo，2. Centre， 74430o， ）

Abstract：Inoder todeterminetheoptimal plantingdensityandorganic fertilizeraplicationrateforincreasing maize yield inregion，asplit-plotexperiment wasdesignedusingplantingdensityandorganicfertlizerrateasexperimentalfactors. Fiveplantingdensis（675075O00，2500，9o，970plants/ha）weeasigedtoainplotsndtegatlir rates （67 500，82 500， 97 500kg/ha ）to subplots.The interaction efects of these two factors on maize grain yield， yield components， andeconomicbenefitwere investigated.Resultsshowedthattheinteractionmainlyimprovedmaizegrainyieldbyincreasingear number.Yieldincreasedwithhigherplantingdensityandorganicfertilizerinput.Theighestgrainyield，17998.Okg/hawas obtained under the combination of 97 5Oo plants/ha planting densityand 97500kg/ha organic fertilizer rate. This treatment also resulted inthe highesteconomicreturn，with totalandnet profits reaching 468OOand1240O Yuan/ha，respectively.

KeyWords：Maize; Plantingdensity; Organic fertilizer;Yield; Economic benefit

玉米作为我国第一大粮食作物，在保障国家粮食安全中占有重要地位[1]。（剩余6876字）