| 作物吸氮效率的试验研究 |
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| 引用本文： | 杨路华,王康,谢华.作物吸氮效率的试验研究[J].土壤通报,2002,33(2):117-120. |
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| 作者姓名： | 杨路华 王康 谢华 |
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| 作者单位： | 武汉大学,湖北,武汉,430072 |
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| 基金项目： | 本文获得国家自然科学基金九五重点项目(59839320)资助 |
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| 摘 要： | 考虑灌水施肥两方面的影响因素 ,在试验资料的基础上 ,本文初步探讨了水、肥与作物产量的关系 ,分析了作物吸氮效率的内涵 ,建立了单因素氮素生产函数、双因素水肥生产函数 ,为北方缺水地区制定节水灌溉与科学施肥提供了依据。
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| 关 键 词： | 水分 氮素 作物 生产函数 |
| 文章编号： | 0564-3945(2002)02-0117-04 |
| 修稿时间： | 2000年11月3日 |
Experiment and Study on Efficiency of Crop Nitrogen Uptake |
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| YANG Lu hua,WANG Kang,XIE Hua.Experiment and Study on Efficiency of Crop Nitrogen Uptake[J].Chinese Journal of Soil Science,2002,33(2):117-120. |
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| Authors: | YANG Lu hua WANG Kang XIE Hua |
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| Abstract: | Based on experimental data,the relation among irrigation,fertilizer and crop yield was analyzed preliminarily with considering water and N fertilizer in the paper.The connotation of efficiency of crop nitrogen uptake was discussed,three models were built about efficiency of crop nitrogen uptake,nitogen production function,two factorial(water and fertilizer) Production function.It provides a reference for establishing water saving irrigation and fertilizer dressing. |
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| Keywords: | Water nitrogen crop production function |
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