Abruña F, Vicente-Chandler J, Figarella J, Silva S. Potassium Supplying Power of the Major Ultisols and Oxisols of Puerto Rico. JAUPR [Internet]. 1976 Jan. 1 [cited 2024 Nov. 22];60(1):45-60. Available from: https://revistas.upr.edu/index.php/jaupr/article/view/10585