ABRUÑA, Fernando; VICENTE-CHANDLER, José; FIGARELLA, Jacinto; SILVA, Servando. Potassium Supplying Power of the Major Ultisols and Oxisols of Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 60, n. 1, p. 45–60, 1976. DOI: 10.46429/jaupr.v60i1.10585. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/10585. Acesso em: 22 nov. 2024.