Sampaio, E.V.S.B. et al. 2014. Nutrient cycling in sugarcane. III. Nutrient contents and root distribution in the soil. Pesquisa Agropecuaria Brasileira. 22, 4 (Apr. 2014), 425–431. DOI:https://doi.org/10.1590/S1678-3921.pab1987.v22.14355.