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Home > Wen Yuan (Primary School Edition) > 2019 No.03 > 施肥配比经济效用评价

  • 施肥配比经济效用评价

    Author(s)：

    李梦琳 马雯秋

    Publication Title：

    Wen Yuan (Primary School Edition) 2019 No.03

    Affiliations：

    石家庄铁道大学数理系 河北 石家庄 050043

    Abstract：

    本文围绕着农作物施肥效果问题进行讨论,利用数据包络分析法进行了对化肥混合施用的综合效果评价分析,并从应用价值角度给出了作物产量最大时化肥混合施用的最优配比方案以及经济效益最大时的最佳施肥量.针对问题,首先利用数据包络分析,对20世纪末21世纪初混合化肥代替单一化肥的背景下,混合施用化肥的综合效果进行DEA评价分析,得出结论:DEA指数递增趋于1,混合施用化肥效果提升且达到最优,给出了用混合施用化肥代替单一化肥的建议.随后利用MATLAB软件分别求解得出土豆和生菜生长中三种肥料施肥量的最优配比,并且结合实际情况,建立了农作物产出与成本投入的经济效益模型.最后综合上述问题对模型做出了评价与推广.

    Keywords：

    数据包络分析;最优施肥量

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    [1] 李梦琳,马雯秋.施肥配比经济效用评价[J].Wen Yuan (Primary School Edition),2019(03),.

文渊(小学版)
Wen Yuan (Primary School Edition)

Language: 中文

CN：11-9274/G

ISSN：2096-6261

Publication Frequency: 月刊

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