Couto, W. et al. 1991. Response of andropogon grass to P fertilizers and lime in a Dark-Red Latosol of the cerrados. Pesquisa Agropecuaria Brasileira. 26, 3 (Mar. 1991), 297–304. DOI:https://doi.org/10.1590/S1678-3921.pab1991.v26.3342.