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In this work the possibility of express prediction of the content of organic carbon, total and hydrolysable nitrogen in leached chernozems by infrared spectrometry with attenuated total reflection sampling technique with minimal spectra processing was studied. The territory of study is a plot with a rugged topography (elevation changes up to 60 m) and severe erosion. In total, 50 samples were taken from the arable horizon (0-20 cm). The spectra were obtained in the range 4000-660 cm-1 with a spectral resolution ? ...