Таълим вазирлиги бухоро давлат университети



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Syrdary

-
10,2 
-2,1 14,4 17,3 23,7 28,2 29,0 26,9 20,0 14,5 6,9 2,5 
14,3 
Yangier -8,0 -0,2 15,3 17,8 24,1 28,8 29,4 27,7 20,8 15,3 8,5 3,6 
15,3 
The average annual air temperature was 15-15,9
0
С in 2016, 14,9-15,8
0
С in 2017, and 14,3-
15,3
0
С in 2008, with the lowest average air temperature in January of 2018 this figure was 
minimum 8,0
0
С - 10,2
0
С, with the highest average temperature recorded in summer of 2018 and 
recorded at 29,9
0
С. (Table 3). 
The soil temperature regime is of great importance in agricultural production. The average 
annual temperature of the soil surface has been around 17-19
0
С (2006-2008) and its average 
monthly temperature throughout the year is distributed evenly over the same month as the air 
temperature. The absolute minimum annual soil temperature was recorded in different years 
(2016, 2018), in Yangier where minus 14-26
0
С, in Syrdarya at minus 17-26
0
С, absolute 
maximum temperature 67-70
0
С. (Table 3). 
Table 3 
Average monthly and annual precipitation amount, mm 
Ye
ars
Name of the 
station 
Months 
Annual 
precipitati
on quantity 

II 
III IV 

VI VII VIII IX X 
XI XII 
2016 
Syrdarya 
64,2 23,3 51,1 33,8 1,6 0,5 5,2 0 2,9 23,4 42,4 43,5 
291,9 
Yangier 
53,9 27,7 50,7 56,2 9,0 3,0 4,6 0 17,2 12,0 33,3 26,7 
294,3 
2017 
Syrdarya 
29,7 49,6 70,1 64,9 39,2 0,8 1,7 0 
0 0,3 13,4 72,4 
345 
Yangier 
15,9 49,2 79,8 82,7 60,7 3,4 



0 28,1 44,0 
363,8 
2018 
Syrdarya 
32,1 48,6 16,8 30,5 33,4 0 
2,7 0 17,0 19,1 33,3 37,8 
271,3 
Yangier 
21,3 54,8 16,5 27,5 13,3 0 
1,8 0,5 3,2 41,6 31,3 32,5 
246,5 


141 
According to the Center for Hydrometeorology, the average annual precipitation is from 
246.5-271.3 mm (2008) to 345.0-363.8 mm (2017), maximum atmospheric precipitation per day. 
Mechanical content of the soil, water absorption content of the soil and groundwaters, 
collector, drainage, irrigation water, general humus, nitrogen, phosphorus, potassium, SO
4
--
gypsum, СО

- carbonates, bases content quantity. 
At the same time, the grouping of the soil to the mechanical composition was carried out 
on the basis of the N.A. Kachinskiy classification, i.e the amount of physical clay (particle size 
<0.01 mm). 
Anion and cations mg-equivalent on the classification of soil salinity N.I. Bazilevich and 
Y.I. Pankova’s soil salinity chemism was determined in accordance to their relativeness. (Table 
5). 

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