PAULETTI, Volnei, and Emilson MENARIM. “TIMING, SOURCES AND RATES OF POTASSIUM FERTILIZER APPLICATION FOR POTATO”. Scientia Agraria 5, no. 1 (December 31, 2004): 15–20. Accessed January 4, 2026. https://revistas.ufpr.br/agraria/article/view/1091.