BONNET, J. A.; TIRADO SULSONA, P.; ABRUÑA, F. Effect of lime-phosphorus and green manure on sweet potatoes and corn grown in acid soils. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 31, n. 4, p. 303–321, 1947. DOI: 10.46429/jaupr.v31i4.12857. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12857. Acesso em: 30 jan. 2023.