Flores, Rilner Alves, et al. “POTASSIUM IN THE EARLY DEVELOPMENT STAGE OF UNBURNED SUGARCANE RATOON”. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], vol. 42, no. 1, Mar. 2012, pp. 106-11, https://doi.org/10.5216/pat.v1i1.13977.