Mineralogical Characterization of Potassium-Bearing Clay Minerals and Their Implications on K Availability in Calcareous Soils of Sulaymaniyah, Kurdistan: Mineralogical Characterization of Potassium-Bearing Clay Minerals and Their Implications on K Availability in Calcareous Soils. Academic Journal of International University of Erbil, [S. l.], v. 3, n. 2, p. 1120–1128, 2026. DOI: 10.63841/iue3261120. Disponível em: https://ojs.cihanrtv.com/index.php/public/article/view/205.. Acesso em: 25 apr. 2026.