Abstract <p>A new method for compilation of a map of soil organic matter content based on multitemporal spectral characteristics of the open soil surface has been implemented in the South Russian province of the steppe zone of the East European Plain. The map is based on the revealed functional relationship between the content of soil organic matter and the multitemporal characteristics of the open soil surface with the coefficient of determination of 0.81. The spatial resolution of map is 30 m, which exceeds the accuracy of the existing agrochemical survey of plowed land in Russia. The implementation of the new approach has required modification of the terrain agrochemical survey based on a map of the <i>C</i> coefficient of the multitemporal soil line. The detailed map of the soil organic matter content develops methods of mapping the soil cover structure in the direction of identifying the intra-field heterogeneity of the soil cover for precision farming systems.</p>