| 土壤水分对氮肥肥效影响的试验 |
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| 引用本文： | 李象山,张廷珠.土壤水分对氮肥肥效影响的试验[J].应用气象学报,1993,4(1):73-78. |
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| 作者姓名： | 李象山 张廷珠 |
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| 作者单位： | 1.山东省泰安农业气象试验站 泰安271000
(李象山，张廷珠，王方云)，山东省泰安农业气象试验站 泰安271000(张衍华) |
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| 摘 要： | 针对当前高产麦田中氮肥用量过大，浇水次数过多，严重影响小麦产量问题进行了试验。分析了不同肥、水条件对产量的影响，建立了数学模式。并根据投入、产出综合评判，得出不同产量水平下的经济最佳氮肥施用量和浇水次数。对提高小麦肥、水利用率有较高的实用价值。
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| 关 键 词： | 土壤水分 氮肥肥效 最佳施用量 肥、水利用率 |
A Test of the Effect of Soil Moisture on Efficiency of Nitrogen Fertilizer |
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| Li Xiangshan Zhang Tingzhu Wang Fangyun Zhang Yanhua.A Test of the Effect of Soil Moisture on Efficiency of Nitrogen Fertilizer[J].Quarterly Journal of Applied Meteorology,1993,4(1):73-78. |
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| Authors: | Li Xiangshan Zhang Tingzhu Wang Fangyun Zhang Yanhua |
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| Institution: | 1.(Taian Agrometeorological Experiment Station, Shandong Province, Taian 271000) |
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| Abstract: | At present,it has been found that the reduction in production occurring in the high-yieldedwheat plots is caused by the excessive utilization of nitrogen fertilizer and high frequency of irri-gation.The effects of different nitrogens and water levels on wheat yield are discussed and amathematical model is described in the paper.Based on the overall evaluation of input and output,the optimum requirements for the nitrogen amount and irrigation frequency are found out,thusbringing the great help to raise nitrogen and water efficiency to wheat. |
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| Keywords: | Soil moisture Nitrogen efficiency Optimum requirement Fertilizer water efficiency |
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