o:3496 Influence of natural zeolite - clinoptilolite on potassium and nitrate retention in different soil types en Abstract: As-received and iron(III)-modified natural zeolites were used for studying of potassium and nitrate retention in different soil types (sandy, silty loam and silty clay) under laboratory conditions by using column systems. The concentration of K+ and NO3–N in the leachates was monitored during seven days. The results showed that the retention of K+ and NO3-N mainly depends on the soil type. The addition of zeolite has the highest impact on the K+ retention in the acidic sandy soil. For all studied soil types, the leaching kinetics of K+ follows the Avrami kinetics model with the parameter n < 1 indicating a high initial rate, which decreases with time. clinoptilolite, nitrate, potassium, retention, soil 1552101 2584-3176 2023-12-08T12:00:44.579Z 44 no 46 Jelena Pavlović Institute of Soil Science 0000-0001-9424-1080 46 Tore Krogstad 46 Nevenka Rajić application/pdf 967389 https://unilib.phaidrabg.rs/o:3496 no yes 1 70 92000004 71A05 Proceedings of the 7th Slovenian-Serbian-Croatian Symposium on Zeolites 2017