Galíndez, A.A.S. et al. 2010. Preliminary DRIS norms for sugarcane developed from a low number of samples. Pesquisa Agropecuaria Brasileira. 44, 12 (Dec. 2010), 1700–1706. DOI:https://doi.org/10.1590/S1678-3921.pab2009.v44.2268.