“NUTRIENTS AND BIOLOGICAL DYNAMICCS IN AN ULTISOL WITH DIFFERENT VEGETABLE COVERAGE. CALABACITO, PANAMA. 1990-1996”., ciencia-agropecuaria, no. 13, pp. 59–80, Feb. 2003, Accessed: Oct. 09, 2026. Available: https://idiap.desarrollo-ojs1.metadatos.org/index.php/ciencia-agropecuaria/article/view/333