BONNET, J. A.; LUGO-LÓPEZ, M. A. Effect of different quantities of velvetbean green manure on corn yields in Puerto Rico. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 37, n. 1, p. 96–101, 1953. DOI: 10.46429/jaupr.v37i1.12781. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12781. Acesso em: 7 dec. 2022.