@article{article086c45b9,
title   = {Long-Term Potassium Administration/Deprivation Cycles on Tropical Oxisol: Effects on Soil Fertility and Soybean Performance},
author = {Firmano, Ruan Francisco and Oliveira Júnior, A. de and Castro, C and Vale, F and Alleoni, Luis Reynaldo Ferracciú},
year = {2017},
journal   = {E-ifc}
}