<jats:p>The article shows the distribution and morphogenetic structure of
humus and nutrients in the dark gray soils of Andijan region, and the amount of salts
in the soil. Dark gray soils are weakly saline, with a dry residue content of 0.108%
to 0.140% and chlorine ion from 0.007% to 0.014%. The content of humus in the
upper (0-24cm) layers of dark gray soils is up to 1.001%, and their amount decreases
according to the soil profile below.</jats:p>