o:2703 Sustainable agriculture and sustainability of water resources from the aspect of environmental protection en Abstract: The international community has recognized soil salinization as one of the biggest global problems when it comes to soil conservation and its fertility, where the quality of water used for irrigation is a very important factor. Institute of Soil Science in Belgrade conducted research on the properties of agricultural soil and irrigation water sampled at locations under irrigation systems within 6 areas of central Serbia (Braničevska, Podunavska, Pomoravska, Moravička, Mačvanska, and Toplička) in the period 2015-2018. Irrigation water was sampled at the research sites, in which the parameters for assessing its quality were analyzed (pH, electrical conductivity, sodium adsorption ratio, fixed residue). Five different classifications of irrigation water, which define the degree of risk of salinization and alkalization of soil due to the use of water of a certain quality for irrigation purposes, were applied in the paper. It was observed that a number of samples fall into different classes of application possibilities for irrigation according to different classifications. In some areas, the percentage of samples where a mismatch among classifications was observed is not negligible. Worldwide, priority is given to different classifications depending on practical experience and scientific conclusions. Many factors affect the degree of risk of soil salinization that is subject to change in the conditions of climate change. Having in mind the importance and prevalence of soil salinization, we conclude that the practice of using a number of classifications and their revision over time is a positive example and useful tool in the prevention and combat against soil salinization. soil salinity, soil conservation, water quality, irrigation 1552100 978-88-95315-82-9 2023-08-24T10:55:06.491Z 44 no 46 Tara Grujić Institute of Soil Science 0000-0002-0122-6402 46 Radmila Pivić Institute of Soil Science 0000-0002-5848-1551 46 Jelena Maksimović Institute of Soil Science 0000-0001-5217-3972 46 Aleksandra Stanojković Sebić Institute of Soil Science 0000-0002-5176-9827 46 Zoran Dinić Institute of Soil Science 0000-0003-4109-4106 46 Darko Jaramaz Institute of Soil Science 0000-0003-1715-1748 46 Sonja Tošić Jojević Institute of Soil Science 0000-0002-3865-6529 application/pdf 1541377 https://unilib.phaidrabg.rs/o:2703 no yes 1 70 92000004 71A05 1st International Joint Congress on “Sustainable Management of Cultural Landscapes in the contest of the European Green Deal 69 69 2021