Pérez Escolar, Raúl, and José S. Ortiz Vélez. “Performance of Sugarcane Var. P.R. 980 Grown on a Partially Reclaimed Saline Sodic Soil of the Lajas Valley”. The Journal of Agriculture of the University of Puerto Rico 63, no. 3 (July 1, 1979): 377–385. Accessed December 5, 2022. https://revistas.upr.edu/index.php/jaupr/article/view/10296.