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International Journal of Trend in Scientific Research and Development (IJTSRD)
Special Issue on Innovative Development of Modern Research
Available Online: www.ijtsrd.com e-ISSN: 2456 – 6470

Study of the Salt Regime of the Soil under

Various Irrigation Regimes

H. J. Ismoilova, N. B. Turaboeva, G. E. Eshdavlatova

Karshi Engineering Economic Institute, Karshi, Uzbekistan

ABSTRACT solution, accompanied by an increase in its osmotic pressure.
To obtain a high yield of cotton, it has a huge influence As a result, the suction power of root hairs decreases, they
irrigation regime. To study the influence of the irrigation cannot use the necessary water from the soil, which causes a
regime on the salt regime of the soil, we conducted deterioration in the water regime of plants, and in some
observations on two experimental plots. Excessive content cases their complete death.
of readily soluble salts in soils leads to a decrease in the
productivity of agricultural crops, in particular cotton. To characterize the soils of the experimental plots by the
degree of salinity, the initial content of salts was studied

KEYWORDS: readily soluble salts, irrigation regime, water (Table 1). Analyzing the data obtained, we see that the soil of
regime, ground water, soil, salt regime, mineralization section I, due to the heavier texture and close (1.5-2.0 m)
occurrence of mineralized (6-10 g / l of dense residue)
In the soil and climatic conditions of the Karshi steppe, groundwater, is comparatively more saline than that of
obtaining high yields of fine-fiber cotton with high section 2. section I in the upper meter layer contained
technological fiber quality is closely related to the salt regime 0.496% solid residue and 0.0048% chlorine - ion. There
of the soil, since the excess content of readily soluble salts in were even more salts in the soil layer underlain below the
soils leads to a decrease in the yield of agricultural crops, in meter layer: up to 0.725% dry residue and 0.063% chlorine-
particular cotton. This is due not only to the toxic effect of ion.
salts, but also to an increase in the concentration of the soil

Table 1 The initial content of water-soluble salts in the soils of the experimental plots
Layer, cm Denseresidue Totalalkalinity Chlorine - ion Residueofsulfuricacid
Plot 1
0-20 0,654 0,037 0,028 0,378
20-40 0,876 0,032 0,053 0,513
40-60 0,470 0,038 0,046 0,143
60-80 0,473 0,039 0,057 0,237
80-100 0,477 0,038 0,048 0,260
100-200 0,952 0,040 0,045 0,252
120-140 0,830 0,020 0,072 0,490
140-160 0,817 0,030 0,072 0,481
160-180 0,680 0,020 0,060 0,380
180-200 0,617 0,036 0,043 0,344
0-60 0,666 0,035 0,043 0,344
60-100 0,375 0,038 0,052 0,248
0-100 0,496 0,037 0,048 0,296
100-200 0,725 0,025 0,063 0,402
0-200 0,610 0,031 0,054 0,349
Plot 2
0-20 0,120 0,034 0,012 0,056
20-40 0,108 0,037 0,018 0,039
40-60 0,122 0,029 0,033 0,034
60-80 0,140 0,029 0,033 0,042
80-100 0,116 0,032 0,014 0,048
100-120 0,460 0,026 0,021 0,275
120-140 0,656 0,017 0,023 0,427
140-160 0,600 0,018 0,025 0,305
160-180 0,448 0,018 0,033 0,261
180-200 0,338 0,020 0,018 0,207
200-220 0,260 0,025 0,033 0,130
220-240 0,128 0,024 0,014 0,056
240-260 0,124 0,025 0,012 0,063
260-280 0,118 0,024 0,009 0,057
280-300 0,126 0,024 0,011 0,063

ID: IJTSRD39981 | Special Issue on Innovative Development of Modern Research Page 63