VELEZ-SANTIAGO, J.; ARROYO-AGUILU, J. A. Nitrogen Fertilization and Cutting Frequency, Yield and Chemical Composition of Five Tropical Grasses. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 67, n. 2, p. 61-69, 1983. DOI: 10.46429/jaupr.v67i2.7694. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/7694. Acesso em: 26 jan. 2022.