“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”. 2026. Academic Journal of International University of Erbil 3 (2): 1120-28. https://doi.org/10.63841/iue3261120.