Carvalho-Pupatto, Juliana Garcia, et al. “Soil Chemical Attributes, Root Growth and Rice Yield According to Slag Application”. Pesquisa Agropecuaria Brasileira, vol. 39, no. 12, Dec. 2004, pp. 1213-8, doi:10.1590/S1678-3921.pab2004.v39.6898.