| 半干旱区农田水肥调控试验与作物生长模型 |
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| 引用本文： | 李自珍,赵松岭.半干旱区农田水肥调控试验与作物生长模型[J].草业学报,1994,3(1):7-12. |
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| 作者姓名： | 李自珍 赵松岭 |
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| 作者单位： | 兰州大学 |
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| 摘 要： | 以农田水肥调控为依据，从农田生态学角度探讨了水分和养分最优配置问题，提出了叶面积积分、叶面积持续期的概念及计算公式，建立了作物个体和群体水平上的作物生长模型和有关统计模型，计算了最佳施肥量和最小耗水系数，从理论和实践上为高效和谐作物生长系统的建立提供了依据。
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| 关 键 词： | 作物 水分 生长模型 产量 肥料 |
Crop Growth Model and the Regulation of Water and Nutrients in Farmland in Semi Arid Region |
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| Li Zizhen,Zhao Songling.Crop Growth Model and the Regulation of Water and Nutrients in Farmland in Semi Arid Region[J].Acta Prataculturae Sinica,1994,3(1):7-12. |
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| Authors: | Li Zizhen Zhao Songling |
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| Abstract: | Based on the farmland ecology,the optimum matching of the water and nutrients was studied with theexperiments to control the water and nutrients in farmland. The concepts of integral of leaf area and leafperiod and their measurable formula were constructed.The crop growth model and statistical model in thelevel of individual and group were set up.The optimum quantity of fertilization and the lowest coefficient ofused water were defined. Thereby,the high efficient and harmonious growth system of crops can be set upnot only in theory but in practice. |
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| Keywords: | Crop water nutrient growth model yield |
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