VÁZQUEZ, Roberto. Effects of Irrigation at Different Growth Stages, and of Nitrogen Levels on Corn Yields in Lajas Valley, P.R. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 45, n. 2, p. 85–105, 1961. DOI: 10.46429/jaupr.v45i2.12259. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/12259. Acesso em: 6 may. 2024.