Библиографический список
1.
Ахмедов А.У. Почвенно- мелиоративные условия восточной части Джизакской
степи и основные пути их улучшения. Автореферат канд. дисс., Ташкент,- 125 с
2.
Калашников А.И. Как лучше промывать засоленные земли.
Ташкент, -92 с
3.
Камилов О. К., Ахмедов А. У., Рузметов М.И Актуальные проблемы мелиорации
засоленных почв аридной зоны. В кн. Проблемы генезиса, плодородия, мелиорации,
экологии почв, оценка земельных ресурсов. Алматы, 2002.
4.
Кимберг И.В. Почваы пустынной зоны Узбекистана. Т: Фан , -201 с.
5.
Намазов Х.К. Почвенно- мелиоративные условия Джизакской степи и их изменения
под влиянием орошения. Автореферат канд. дисс. 1996. -185 с
UDK.631.4
A BRIEF CHARACTERISTICS OF SOIL LAYER IN MIRZACHUL REGION
Namazov Xushvaqt Koraxonova Yulduz, Amonov Odil. Nafetdinov Sh.
Tashkent state agrarian university, Bukhara state university
Abstract.
In-depth analysis of the current agro-chemical and meliorative condition of
main irrigated soils spreading in the area of Mirzachul, to determine the variability of
productivity in the soil and to develop scientific basis for its enhancement. It serves as a basis for
soil-moistening study of soil agrophysics properties, soil moisture content, soil salinity and
irrigation norms, irrigation procedures and land reclamation arrangements with the scientific
basis for effective land use. This problem solves the geomorphological, lithologic and
hydrogeological conditions of soils, and their genesis and accumulation of salts in the soil layers
is scientifically justified.
Introduction.
Under the influence of anthropogenic factors, the process of evolutionary
transformation of soils cover on irrigated soils, identification of the degree of fertility of irrigated
soils and drawing up maps of soil quality, as well as the development of a set of measures to
maintain and increase fertility.
Creation of productivity models for irrigated soils using technologies of the
geoinformation system and development of solutions aimed at preservation and enhancement of
soil fertility.
The irrigated soils of Mirzachul known as “Bayaut-1” in Bayaut district, Amir Temur in
Gulistan district, Amir Temur in Sayhunabad district and “Malik” in Syrdarya district were
evaluated. As a result, maps for soil quality assessment of scales 1: 10000 and 1: 5000 for farms
were compiled and maps of soil quality assessment of 14020,6 ha were put into production
(Reference of the State Committee on geodesy, cartography and State Cadastre of Land
Resources No. 03-05-3475, dated from May 3, 2018). These soil quality maps serve as a
scientific basis for determining the single land tax, allocating agricultural crops to the quality of
soils, calculating the land value, setting crop yields, and allocating land for non-agricultural
purposes.
The mechanical content, humus and nutrient content of irrigated gray-brownish grassland
and grassland soil salinity maps have been introduced into the practice of Land Resources,
Geodesy, Cartography and State Cadastre of Malik of Syrdarya District, and Gulistan massive of
Sayhunobod District in Syrdarya region (Reference No. 03-05-9221 of the State Committee on
Land Resources, Geodesy, Cartography and State Cadastre from November 30, 2018). As a
result, the data on these digital maps made it possible to improve soil properties and land
reclamation in farmlands. The average height of the Mirzachul plains is 250-310 meters above
sea level and the highest part lies in the south-east that is near the beginning of irrigation canals
with its height of 350 m (Table – 1).
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