| 氮肥损失研究进展 |
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| 引用本文： | 李世娟,李建民.氮肥损失研究进展[J].农业环境科学学报,2001,20(5):377-379. |
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| 作者姓名： | 李世娟 李建民 |
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| 作者单位： | 中国农业大学植物科技学院, |
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| 基金项目： | 国家自然科学基金资助项目39570437 |
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| 摘 要： | 在查阅了大量大田实验和15N追踪实验文献资料的基础上,对肥料氮损失量及主要损失途径进行了总结。结果表明,土壤中氮肥去向问题非常复杂,氮素损失量与施氮量和土壤水分有关。冬小麦生长期间发生淋失的可能性很小,主要是反硝化损失。
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| 关 键 词： | 肥料氮 损失 |
| 文章编号： | 1000-0267(2001)05-0377-03 |
| 修稿时间： | 2000年12月13 |
Research Progress on Losses of Fertilizer Nitrogen |
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| LI Shi juan,LI jian min.Research Progress on Losses of Fertilizer Nitrogen[J].Journal of Agro-Environment Science( J. Agro-Environ. Sci.),2001,20(5):377-379. |
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| Authors: | LI Shi juan LI jian min |
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| Abstract: | Today because of low nitrogen utilization efficiency (NUE), high nitrogen-fertilizer application rates are often inevitable, leading to more and more losses of N-fertilizer. This article summarizes the data from a lot of field experiments and 15N trace experiments, and assessed loss amounts of N-fertilizer and main loss way. The fate of N-fertilizer applied to soil is very complicated. Loss amounts are generally related to N rates and water moisture. In winter wheat growing season, the possibility of leaching beyond root zone is very small, while the losses by denitrification are substantive. |
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| Keywords: | losses fertilizer N |
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