* GULISTON DAVLAT UNIVERSITETI AXBOROTNOMASI,
Tabiiy va qishloq xo‘jaligi fanlari seriyasi. 2021. № 1
3
Fizika
UDC 530.1:
535
STUDY OF THE THERMAL AND TEMPERATURE CONDITIONS OF FLAT AND
INCLINED LANDS
TEKIS VA QIYALIK YERLARNING ISSIQLIK VA TEMPERATURA REJIMINI O‘RGANISH
ИССЛЕДОВАНИЕ ТЕПЛОВОГО И ТЕМПЕРАТУРНОГО
РЕЖИМА ПОЧВЫ РОВНОЙ И
ГРЕБНИСТОЙ ПОВЕРХНОСТИ
Niyozov Shavki Kulaganovich, Abdullaev Abdurahmon,
Elmurodov Rustam Ummatkulovich, O‘tkirov Shahzod Xolmat o‘g‘li
Guliston davlat universiteti, 120100. Sirdaryo viloyati,
Guliston shahri, IV-mavze.
E-mail: shkniyazov@gmail.com
Abstract. Prior to sowing seeds of agricultural crops, awareness of the thermal, water, and
light regimes of the land is of great importance. In this article, we studied the thermal and temperature
conditions of flat and inclined lands through the heat transfer equations in the soil. At the same time,
the temperature invariance at a certain depth from the soil surface was
mainly obtained, on the basis of
which a formula for calculating the soil temperature from the sediment was derived by the method of
harmonic analysis. In addition, formulas for flat Land and temperature regimes of 10˚, 20˚, 30˚ slopes
relative to the horizon for southern and northern surfaces have been released. Theoretical calculations
have shown that the temperature on the slopes is higher than on the flat lands compared to the
experimental results. This suggests that agricultural workers are creating conditions for sowing plant
seeds in the ground in early spring.
Keywords: solar radiation, solar radiation absorbed in the soil, thermal conductivity
coefficient,
heat flux, angular velocity, temperature,
heat transfer coefficient, solar radiation
absorption coefficient,
geographical latitude, angle of inclination, hour angle of the sun,
angle of
deflection of the sun, soil temperature, solar radiation falling vertically on the earth's surface.
