Open AccessOptimization of the irrigation rate of agricultural crops based on the use of energy resources
Author(s) -
Nietbai Nurzhanovich Khozhanov,
Yuri Germanovich Bezborodov
Publication year - 2021
Publication title -
agrarnyj naučnyj žurnal
Language(s) - English
Resource type - Journals
eISSN - 2587-9944
pISSN - 2313-8432
DOI - 10.28983/asj.y2021i11pp108-112
Subject(s) - irrigation , environmental science , agriculture , farm water , energy consumption , arid , total energy , consumption (sociology) , water balance , hydrology (agriculture) , agricultural engineering , geography , water conservation , agronomy , ecology , psychology , geotechnical engineering , archaeology , engineering , displacement (psychology) , psychotherapist , biology , social science , sociology
The results of methodological studies on the calculation of the total water consumption and irrigation rate of agricultural crops, based on the analysis of the use of energy resources, the radiation balance of the arid zone of the Republic of Kazakhstan are presented. It is proposed to determine the actual total water consumption and the size of the irrigation norm of agricultural crops through the radiation coefficient of the area (KRd), which is determined by the functional dependence with the total lack of air humidity for the growing season (?d) and the radiation indicator of a specific area (R). The dimensions of irrigation norms obtained as a result of calculations are on average 838.9 m3/ha, which is 76.40-83.90 m3/ha higher than the experimental data calculated according to the formula of A. N. Kostyakov. The dimensions of the irrigation norm calculated at the Kordai, Taraz, and Tyuken weather stations are lower than the experimental data. The established fact gives reason to believe that for many years insufficient justification for the appointment of irrigation standards, and, consequently, the saving of irrigation water contributed to the degradation of irrigated massifs. The calculations of the total water consumption according to the indications of 6 regional weather stations were carried out. The calculation of the total water consumption indicator by the absolute mark does not differ from the calculated one by the method of S. M. Alpatiev by more than 10%. The same difference is shown by the calculation of the total water consumption indicator for the radiation indicator. The calculations of the radiation coefficient of the area show that there are energy opportunities to optimize not only irrigation norms and irrigation regime, but also the entire farming system of the arid zone of the Republic of Kazakhstan, which are primarily due to the imperfection of the operated irrigation systems, low quality of irrigation and other reasons.