Purpose: to determine the influence of introducing water-saving technologies (drip irrigation) on the potential reduction in irrigation water consumption and drainage water volumes in the Khorezm region.
Materials and methods. Water and salt balance data for separate districts of the Khorezm region were analyzed on the basis of the regional reclamation service monitoring of the Ministry of Water Resources. Experimental studies of the drip system operating mode were conducted on salinized soils with heavy texture in the Khorezm region. The experimental variants differed in the location of pipes relative to the furrows and the water amount supplied to the emitters. The cotton irrigation regime in the experiments was determined by maintaining soil moisture at 70-80-60 % of the maximum field moisture capacity (MFMC) throughout the crop development phases. The control variant was furrow irrigation.
Results. Analysis of water management data showed that 42–44 % of the withdrawn water is diverted through collector-drainage networks. Field studies conducted on Diyorbek Dzhumaniyazov's farm in the Khankinsky District found that drip irrigation created favorable conditions for cotton growth and development. This result was obtained when sowing cotton on heavy loamy soils with a row spacing of 90 cm, an emitter flow rate of 1.6 l/h, a distance between emitters of 40 cm, and a distance between irrigation pipes of 180 cm. The irrigation scheme was 3-6-3, i.e., 12 irrigations per season. The irrigation rate was 196–204 m³/ha, with an irrigation rate during the growing season of 2403 m³/ha.
Conclusions. Compared to the control variant with furrow irrigation, to obtain 1 ton of yield, drip irrigation saved 1,857 m³/ha of irrigation water in the second variant; 2,193 m³ in the third variant; 1,881 m³ in the fourth variant; and 2,068 m³ in the fifth variant. The highest yield – 4.22 t/ha – was obtained in the fourth experimental variant, which is 0.85 t higher than in the control variant.
irrigation network, water use and discharge, water resource shortage, collector-drainage runoff, mineralization, water-saving irrigation technology, drip irrigation, irrigation and water application rates, cotton yield
Urazkeldiev A. B., Makhmudov I. E., Turdiboev Yo. Ya. The prospects of influence of water-saving irrigation technologies on reducing drainage water volumes in the Khorezm Region of Uzbekistan. Ways of Increasing the Efficiency of Irrigated Agriculture. 2026;98(1):354–370. (In Russ.).
1. Khamidov M., Jurayev U.А., Buriev X.В., Juraev A. [et al.]., 2023. Efficiency of drip irrigation technology of cotton in saline soils of Bukhara oasis. IOP Conference Series: Earth and Environmental Science. International Conference on Advanced Agriculture for Sustainable Future, vol. 1138, no. 1, article number: 012007, DOI: 10.1088/1755-1315/1138/1/012007, EDN: WMSEVZ.
2. Olgarenko G.V., Turapin S.S., 2020. Analiticheskie issledovaniya perspektiv razvitiya tekhniki orosheniya v Rossii: informatsionno-analiticheskoe izdanie [Analytical Studies of the Prospects for the Development of Irrigation Technology in Russia: Information and Analytical Edition]. Kolomna, IP Lavrenov A.V., 128 p., ISBN 978-5-9908948-9-1, EDN: XRBKQM. (In Russian).
3. Borisov D.N., Pakhomov A., 2022. Aspekty sovremennogo razvitiya kapel'nogo orosheniya [Aspects of modern development of drip irrigation]. Agrarnaya nauka – 2022: materialy Vseros. konf. molodykh issledovateley [Agrarian Science – 2022: Proceed. of the All-Russian Conference of Young Researchers]. Moscow, Russian State Agrarian University – Moscow Agricultural Academy named after K.A. Timiryazev, pp. 163-166, EDN: PHCMVT. (In Russian).
4. Demin A.P., 2021. Transformatsiya oroshaemykh zemel' v regionakh Rossii v postsovetskiy period [Transformation of irrigated lands in the regions of Russia in the Post-Soviet period]. Geografiya i prirodnye resursy [Geography and Natural Resources], vol. 42, no. 4, pp. 24-33, DOI: 10.15372/GIPR20210403, EDN: SGRAYU. (In Russian).
5. Chekunov D.V., 2020. Preimushchestva kapel'nogo orosheniya nad dozhdevaniem i poverkhnostnym polivom [Advantages of drip irrigation over sprinkling and surface irrigation]. Molodoy uchenyy [Young Scientist], no. 23(313), pp. 500-502, EDN: SHABSB. (In Russian).
6. Babichev A.N., Balakai G.T., Babenko A.A., Dolgov V.Yu., 2025. Vliyanie kapel'nogo orosheniya na urozhaynost' i kachestvo produktsii stolovogo vinograda, vstupivshego v period plodonosheniya [The influence of drip irrigation on productivity and quality of table grapes during the fruiting period]. Melioratsiya i gidrotekhnika [Land Reclamation and Hydraulic Engineering], vol. 15, no. 4, pp. 18-33, DOI: 10.31774/2712-9357-2025-15-4-18-33, EDN: KASKQS. (In Russian).
7. Khamidov M., Ishchanov J., Khamidova Sh., [et al.]., 2023. Water scarcity under global climate change: Ways of addressing water scarcity in the Amu Darya lower reaches. IOP Conference Series: Earth and Environmental Science. International Conference on Advanced Agriculture for Sustainable Future, vol. 1138, no. 1, article number: 012008, DOI: 10.1088/1755-1315/1138/1/012008, EDN: BPWZIN.
8. Isaev S., Sarimsakov M., Sarimsakova M., [et al.]., 2023. Application of water-saving irrigation technologies of intensive apple orchards in the irrigated regions of Uzbekistan. E3S Web of Conferences: Ural Environmental Science Forum “Sustainable Development of Industrial Region” (UESF-2023), Chelyabinsk, 25–28 april 2023. Chelyabinsk: EDP Sciences, vol. 389, article number: 03052, DOI: 10.1051/e3sconf/202338903052, EDN: OMKUQN.
9. Horst M.G., Ikramov R.K., 1995. Osnovnye printsipy rayonirovaniya oroshaemykh zemel' Uzbekistana po primenimosti kapel'nogo orosheniya [Basic principles of zoning of irrigated lands of Uzbekistan according to the applicability of drip irrigation]. Sb. nauch. tr. po kapel'nomu orosheniyu [Collection of Scientific Papers on Drip Irrigation]. Tashkent: SANIIRI, pp. 13-24. (In Russian).
10. Matyakubov B., Nurov D., Teshaev U. Kobulov K., 2023. Drip irrigation advantages for the cotton field in conditions of salty earth in Bukhara province region. IOP Conference Series: Earth and Environmental Science. International Conference on Advanced Agriculture for Sustainable Future, vol. 1138, no. 1, article number: 012016, DOI: 10.1088/1755-1315/1138/1/012016, EDN: AZQDFQ.
