20.500.12556/RUL-177136 Assessing the impact of seasonal variability on irrigation water quality and suitability for agricultural use in wet and dry conditions Ocenjevanje vpliva sezonske spremenljivosti na kakovost vode za namakanje in primernost za kmetijsko uporabo v vlažnih in sušnih razmerah This study investigates the seasonal variation in water quality for irrigation from 57 wells in Sulaimani City, using two classification models: Ayers & Westcot (1985) and Maia & Rodrigues (2012). Key water parameters such as pH, Electrical Conductivity (EC), Sodium Adsorption Ratio (SAR), bicarbonates (HCO₃⁻), and (Cl⁻) concentrations were analyzed. Results showed that during the wet season, 45 wells had no restrictions (NR), while 12 had slight to moderate restrictions (S-MR). In the dry season, 29 wells were classified as NR and 28 as S-MR. Water quality was generally favorable for irrigation in the wet season but required management strategies for wells with higher EC and SAR, particularly in the dry season when salinity and ion concentrations increased. The Ayers & Westcot classification reflected seasonal variations in EC, SAR, and bicarbonates, with water quality declining slightly in the dry season, leading to more wells classified as S-MR. Using the Irrigation Water Quality Index by Maia & Rodrigues, some wells shifted from "Good" to "Excellent" in the dry season due to changes in EC levels. These results highlight the need for continuous water quality monitoring and adaptive irrigation management to optimize water use and prevent soil salinization in regions with seasonal variability. irrigation water quality EC pH season variation kakovost vode za namakanje EC pH sezonska nihanja true false true Angleški jezik Slovenski jezik Članek v reviji 2025-12-16 15:35:33 2025-12-16 15:35:37 2025-12-28 04:03:06 0000-00-00 00:00:00 2025 0 0 13 str. no. 4 Vol. 121 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 631 1854-1941 10.14720/aas.2025.121.4.21860 261731587 View_of_Assessing_the_impact_of_seasona...pdf View_of_Assessing_the_impact_of_seasona...pdf 1 C6FA07DF6C38BFE4C0470E054769C8FC eb7a5d5e986b7b97163d773594073e4ed0e6f09783e0e45e045a657e9ab4ae95 2c8140e5-da8c-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=223991 https://journals.uni-lj.si/aas/article/view/21860/19767 1 0d280772-da8c-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=223990 Biotehniška fakulteta Acta agriculturae Slovenica 0 0 0