The results of our study are also in agreement with those obtained by Canellas et al. (2003), who observed significant changes and increases in the levels of K, Mg and Ca in areas of sugarcane without burn in comparison with burned sugarcane. The addition of the sugarcane without burn residues could increase the pH, leading to the formation of complex of H and Al with plant residue composts, leaving more Ca, Mg and K free in the soil solution. According to Pavinato and Rosolem (2008)