“Potential of olivine melilitite, granite and sienite in the availability of potassium in soils”, Rev. Ciênc. Agrovet., vol. 12, no. 1, pp. 68–77, Jan. 2013, Accessed: Aug. 17, 2026. Available: https://www.periodicos.udesc.br/index.php/agroveterinaria/article/view/5200