VÁZQUEZ, Roberto. Effects of Irrigation, Nitrogen Levels, and Plant Population on Corn Yields in Lajas Valley, P. R. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 44, n. 3, p. 121–137, 1960. DOI: 10.46429/jaupr.v44i3.12087. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12087. Acesso em: 19 apr. 2024.