“EFFECT OF DIFFERENT SILICON LEVELS ON THE RICE CULTURE IN ULTISOILS AND ALFISOILS. CALABACITO, PANAMA. 2001”. Ciencia Agropecuaria, no. 13 (February 10, 2003): 41–58. Accessed October 9, 2026. https://idiap.desarrollo-ojs1.metadatos.org/index.php/ciencia-agropecuaria/article/view/313.