Determination of the mechanical composition and salinity of the Bukhara Gijduvan district of the Bukhara region

Bukhara State University, 200100, Uzbekistan

^* Corresponding author: h.h.salimova@buxdu.uz

Abstract

In the article, the mechanical composition and type and level of salinity of meadow-alluvial soils of Gijduvan district of Bukhara region were determined. According to the obtained data, this type of soil is mostly non-saline, salinity is found in the layer below 1 meter. The mechanical composition is moderate in the driving layer, but heavy in the lower layers. In different soil-climatic conditions of our republic, including determining the general properties of irrigated soils of Gijduvon district of Bukhara region, determining the state of land reclamation, reducing the effects of degradation processes occurring in oasis soils, maintaining, increasing and protecting soil fertility, and carrying out research on effective use of land going is important. The reclamation condition of Bukhara oasis soils, their mechanical composition, their origin and causes of formation, the reclamation condition of meadow alluvial soils with different levels of salinity, the melioration condition of the soils of the meadow alluvial soils are noted to be better than that of other meadow alluvial soils. The change in the composition of the absorption complex of saline soils and the increase in the share of sodium and magnesium cations in it is due to the movement of salts in the Aral Sea with the help of the wind. It is necessary to take into account not only the mechanical composition of the soil, the level of salinity, but also the type and chemistry of salinity in salt washing. It is highlighted that special agrotechnical activities are carried out on these soils.