Caro-Costas, Rubén, and José Vicente-Chandler. “Effect of Heavy Rates of Fertilization on Beef Production and Carrying Capacity of Napier Grass Pastures over 5 Consecutive Years of Grazing Under Humid Tropical Conditions”. The Journal of Agriculture of the University of Puerto Rico 56, no. 3 (July 1, 1972): 223–227. Accessed April 20, 2024. https://revistas.upr.edu/index.php/jaupr/article/view/10828.