Costa, N.D. et al. 2000. Nitrogen levels through fertirrigation and plant density on melon crop in a Vertisol. Pesquisa Agropecuaria Brasileira. 35, 3 (Mar. 2000), 491–495. DOI:https://doi.org/10.1590/S1678-3921.pab2000.v35.5813.