ROMERO GUZMAN, ELIZABETH TERESITA; ESTELLER ALBERICH, MARIA VICENTA; ORDOÑEZ REGIL, EDUARDO; REYES GUTIERREZ, LAZARO RAYMUNDO; ROJAS HERNANDEZ, ALBERTO; ORDOÑEZ REGIL, EN.
(Universidad Autónoma del Estado de México, Facultad de Ciencias Agricolas, 2006-02-19)
The agricultural activities practice often demands an intensive application of fertilizers. Phosphate and nitrogen fertilizers are the most employed in the corn growing areas of the central Mexico highlands. The first ones ...