Abstract: This article presents the morphological, agrochemical, physicochemical and chemical properties of soils of irrigated meadow-alluvial and irrigated desert-sandy soils of Bukhara Oasis. Indicators of biological activity of soils, their seasonal dynamics, evaluation of the level of biological activity of soils on the basis of integral indicators of soil main texture-properties, transformation coefficient, biogenicity, ecological-biological status of organic matter of irrigated soils of the territory are given.