Justification of the humidity regime of grey-earth soils during drip irrigation of cotton
https://doi.org/10.26897/1997-6011-2023-4-46-51
Abstract
The purpose of the research is to determine the moisture limits of grey-earth soils during drip irrigation of cotton. The research was carried out at the experimental site in 2022. The research methodology was developed by the professorial and teaching staff of the Department of Agricultural Mechanics of the National Research University “TIIIMSKh”. Scientific research was carried out on experimental plots and in the laboratory. The results of scientific research were used to solve the problem. Using the data obtained and the formula of V.V. Shabanov, a graph was constructed of the pattern of changes in the relative yield (Yi/Ymax) of cotton depending on the relative humidity of grey-earth soil (in a 0.5 m layer) under drip irrigation. (gi) is determined to be 3.495. In V.V. Shabanov’s expression for irrigated grey-earth soils in the Tashkent region of Uzbekistan, the value of the coefficient that takes into account the response of plants to the deviation of the grey-earth soil moisture from the optimal is 3.495 m. It has been established that the moisture content of grey-earth soils in the Tashkent region of Uzbekistan should be maintained within the most favorable limits based on the needs of cotton during the period of its growth and development. According to the research conducted, the best moisture range for grey-earth soil soils was (0.63‑0.79) from the total moisture capacity (MC) for cotton. The ratio coefficient of this dependence is 0.979 ± 0.089, which indicates a close relationship between the studied values. With the most favorable moisture content of the grey-earth soil (0.63‑0.79 MC) and the level of groundwater 1.80 m from the surface of the earth and deeper, an infiltration regime is observed.
About the Authors
V. V. Pchelkin
Russian State Agrarian University GAU – Moscow Agricultural Academy named after C.A. Timiryazev
Russian Federation
Russian Federation
Pchelkin Viktor Vladimirovich, doctor of technical sciences, professor
127434, Moscow, Timiryazevskaya, 49
AuthorID: 417238
U. T. Kuziev
National Research University “Tashkent Institute of Irrigation and Agricultural Mechanization Engineers”
Uzbekistan
Uzbekistan
Kuziev Ulugbek Tadzhievich, candidate of technical sciences, associate professor
Tashkent, M. Ulugbek, KaryNiyoziy, 39
N. B. Razikov
Research Institute of Agricultural Mechanization
Uzbekistan
Uzbekistan
Razikov Nuriddin Bakhtiyorovich, doctoral candidate
Tashkent region, Yangiyul, Gulbahor, Samarkand, 41
A. D. Soloshenkov
Russian State Agrarian University GAU – Moscow Agricultural Academy named after C.A. Timiryazev
Russian Federation
Russian Federation
Soloshenkov Alexander Dmitrievich, post graduate student
127434, Moscow, Timiryazevskaya, 49
AuthorID: 964756
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Review
For citations:
Pchelkin V.V., Kuziev U.T., Razikov N.B., Soloshenkov A.D. Justification of the humidity regime of grey-earth soils during drip irrigation of cotton. Prirodoobustrojstvo. 2023;(4):46-51. (In Russ.) https://doi.org/10.26897/1997-6011-2023-4-46-51
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