BADILLO-FELICIANO, J.; LUGO-LÓPEZ, M. A. Effect of Four Levels of N, P, K, and Micronutrients on Sweetpotato Yields in an Oxisol. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 60, n. 4, p. 597–605, 1976. DOI: 10.46429/jaupr.v60i4.10504. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/10504. Acesso em: 25 apr. 2024.