As the world population increases and the reduction of arable land, food security is growing a big problem. How to use the limited arable land to create more food becomes an important research ob- ject to scientists. Without the supply of nitrogen and other nutrients, crop yields could not increase, therefore, more study focus on the ecological and efficient application of nitrogen fertilizer. In this paper, the research of static and dynamic nitrogen fertilization model were summarized with their adaantage and disadvantage. Some key issues of quantitative nitrogen fertilization research in future were pointed out.%随着世界人口的增加和耕地面积的减少，粮食安全问题日益受到关注，如何利用有限的耕地创造更多的粮食成为科学家研究的重要课题．作物产量的增加，离不开氮肥等营养物质的供应，如何生态、高效的施用氮肥成为目前研究的热点．文章对作物静态施氮和动态施氮两种方法进行了综述，并剖析其优缺点，同时提出了追氮模型发展的方向．
展开▼
