PENNOCK, William. FIELD RESPONSE OF RED-SPANISH PINEAPPLES TO NITROGEN, CALCIUM, IRON AND SOIL pH. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 33, n. 1, p. 1–26, 1949. DOI: 10.46429/jaupr.v33i1.14301. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/14301. Acesso em: 17 jul. 2024.