This increase in soil pH contributed to
the release of other elements, particularly available P (Edivaldo
et al., 2014). Although soil under FG had higher organic matter
content, there was low exchange base cations content (Ca:
0.63 cmol/kg; Mg: 0.37 cmol/kg; K: 0.07 cmol/kg), probably due
to higher soil acidity (pH 3) and higher Al content (6.03 cmol/kg).