AGROECOLOGICAL STATE OF HYDROMORPHIC SOILS OF CENTRAL FERGANA

Abstract

The article presents agrochemical and ecological characteristics and their influence on the agroecological state of irrigated meadow saz, meadow-takyr soils of Central Fergana. It was determined that as a result of anthropogenic impact, a number of changes occurred in the morphological and other characteristics of soils of different levels of irrigation, they were transferred to other categories and transformed into other soils. The humus content of old-irrigated meadow saz, meadow-takyr soils is higher than in newly developed and newly irrigated soil profiles, and they belong to the group of moderately supplied soils. By the number of mobile nutrients, these soils belong to the low-supplied group. The environmental hazards of irrigated meadow-takyr, meadow saz soils have been established and they have a low level of environmental hazard in terms of the content of nickel, arsenic, cobalt and zinc, that is, in irrigated meadow-takyr soils, arsenic has the highest index (5.88), followed by nickel (1.53), cobalt (1.48) and zinc (1.23), respectively. This state is maintained with relatively high rates for meadow saz soils. According to the antimony element, both soils belong to the group of ecologically safe ones, i.e. their values are equal to 0.33 and 0.29, respectively.