DEL VALLE, JR., R.; SCOTT, T. W.; LUGO-LÓPEZ, M. A. Variable Response of Food Crops to Banded and Broadcast Residual Fertilizer P on an Ultisol. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 65, n. 2, p. 171-189, 1981. DOI: 10.46429/jaupr.v65i2.7590. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/7590. Acesso em: 24 jan. 2022.