• ISSN 1008-505X
  • CN 11-3996/S
蔡祖聪, 颜晓元, 朱兆良. 立足于解决高投入条件下的氮污染问题[J]. 植物营养与肥料学报, 2014, 20(1): 1-6. DOI: 10.11674/zwyf.2014.0101
引用本文: 蔡祖聪, 颜晓元, 朱兆良. 立足于解决高投入条件下的氮污染问题[J]. 植物营养与肥料学报, 2014, 20(1): 1-6. DOI: 10.11674/zwyf.2014.0101
CAI Zu-cong, YAN Xiao-yuan, ZHU Zhao-liang. A great challenge to solve nitrogen pollution from intensive agriculture[J]. Journal of Plant Nutrition and Fertilizers, 2014, 20(1): 1-6. DOI: 10.11674/zwyf.2014.0101
Citation: CAI Zu-cong, YAN Xiao-yuan, ZHU Zhao-liang. A great challenge to solve nitrogen pollution from intensive agriculture[J]. Journal of Plant Nutrition and Fertilizers, 2014, 20(1): 1-6. DOI: 10.11674/zwyf.2014.0101

立足于解决高投入条件下的氮污染问题

A great challenge to solve nitrogen pollution from intensive agriculture

  • 摘要: 人口基数大且人均可耕地占有量小的基本国情决定了我国只有实施以高垦殖率、 高复种指数和大量施用化肥为特征的高强度农业,才有可能保证粮食安全。我们认为,高强度农业的特点决定了我国氮肥当季利用率不可能达到一些发达国家的水平。在这样的背景条件下实现生态环境的可持续发展,除了继续尽一切可能提高氮肥当季利用率、 减少氮肥向环境的扩散外,还必须加强高投入条件下解决氮污染问题的研究,建立相应的理论体系、 政策措施和技术方法。

     

    Abstract: The huge population and the small arable land area per person determine that intensive agriculture, which is characterized by high ratio of cultivated land to territory, high multiple cropping indices, and large input of agro-chemicals, is an inevitable choice for food security in China. Nitrogen use efficiency (NUE) of such an intensive agriculture is unlikely to reach the levels achieved in some developed countries because the NUE decreases with the increases in nitrogen application rate. While we should continue to struggling for higher NUE, we have to realize that nitrogen pollution from crop production could not be controlled by raising NUE alone under intensive agriculture. In order to protect our environment and sustain development, we have to face a challenge to solve nitrogen pollution under the condition of high nitrogen application rate. Research should be strengthened for the control of nitrogen pollution through establishment of theories, principles, technologies, and policies under the intensive agriculture.

     

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