Prieto-Prieto, Ricardo, Elide Valencia, and Rebecca Tirado-Corbalá. “Nitrogen Levels and Age at Harvest and Their Effects on the Nutritive Value and Fermentative Characteristics of Corn (Zea Mays L.)”. The Journal of Agriculture of the University of Puerto Rico 101, no. 1 (January 1, 2017): 79–90. Accessed November 22, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/14295.