PÉREZ-ESCOLAR, R.; SCOTT, T. W.; LUGO-LÓPEZ, M. A. Legume and Nonlegume Crop Residues as Sources of N in Oxisols and Ultisols. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 62, n. 4, p. 361–366, 1978. DOI: 10.46429/jaupr.v62i4.10347. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/10347. Acesso em: 27 sep. 2022.