FOX, R. H.; BADILLO, J.; DEL VALLE, R.; SCOTT, T. W. Response of Corn to Phosphorus Fertilization in Greenhouse, Sunken Drums and Field Experiments. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 60, n. 1, p. 88–92, 1976. DOI: 10.46429/jaupr.v60i1.10588. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/10588. Acesso em: 6 feb. 2023.