[1]
Braga, J.M. 2014. The importance of a mathematical model to determine the critical level of potassium in soils. Pesquisa Agropecuaria Brasileira. 11, 12 (Apr. 2014), 71–75. DOI:https://doi.org/10.1590/S1678-3921.pab1976.v11.16932.