| 合理施肥中确定边际利润率值的研究 |
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| 引用本文： | 张玉峰,白志明,周乃健.合理施肥中确定边际利润率值的研究[J].系统工程理论与实践,1997,17(10):50-53. |
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| 作者姓名： | 张玉峰 白志明 周乃健 |
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| 作者单位： | 山西农业大学 |
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| 摘 要： | 应用数学方法与计算机模拟技术研究了作物施肥的经济效益。建立了合理施肥函数、利润函数、以及经济合理施肥中边际利润率值的确定等数学模型。编制了计算机模拟程序，并应用于实践，为经济合理施肥决策提供了一种行之有效的新方法。
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| 关 键 词： | 合理施肥 边际利润 率模糊目标集 模糊约束集 |
| 收稿时间： | 1996-11-01 |
Studies on the Determination of Marginal Profit Rate in Rational Application of Fertilizer |
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| Zhang Yufeng Bai Zhiming,Zhou Naijian.Studies on the Determination of Marginal Profit Rate in Rational Application of Fertilizer[J].Systems Engineering —Theory & Practice,1997,17(10):50-53. |
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| Authors: | Zhang Yufeng Bai Zhiming Zhou Naijian |
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| Institution: | Shanxi Agricultural University,Taigu 030801 |
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| Abstract: | The paper establishes several mathematical models for the application of fertilizer, the investment profit, the determination of marginal profit rate in rational application of fertilizer,and works out analog computer programme based on the mathematical models, and then applies the models to practice.The results indicate that the models are effective. So this paper provides a new method for the decision of rational application of fertilizer. |
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| Keywords: | rational application of fertilizer marginal profit rate fuzzy objective set fuzzy binding set |
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