Abstract: Soil organic matters (SOM) are important components in soil, and they would affect the physicochemical, chemical and biological properties of the soil directly or indirectly. Many researchers and various advanced techniques have been involved in the investigation of SOM. As a powerful technique for organic analysis, NMR has played an important role in this field. In this paper, the analytical methods commonly used in agrology research were reviewed, and the NMR methods were discussed in detail.

Key words: NMR, soil, organic matter, review