Landrau, Jr., P. and Hernández Medina, E. 1959. Effects of Major and Minor Elements, Lime, and Soil Amendments on the Yield and Ascorbic Acid Content of Acerola (Malpighia punicifolia L.). The Journal of Agriculture of the University of Puerto Rico. 43, 1 (Jan. 1959), 19–33. DOI:https://doi.org/10.46429/jaupr.v43i1.12541.