Vicente-Chandler, José, Héber Irizarry, and Servando Silva. 1982. “Nutrient Uptake by Taniers As Related to Stage of Growth and Effect of Age on Yields of the Morada Variety”. The Journal of Agriculture of the University of Puerto Rico 66 (1):1-10. https://doi.org/10.46429/jaupr.v66i1.7634.