2.2. Physicochemical Analysis

The following physicochemical parameters of the soils were assessed: micronutrient (Cu, Fe, Mn, and Zn), organic matter, P, K, Ca, and Mg concentrations, and pH. The evaluation of clay and silt was carried out by granulometric analysis using the densimeter method (or Buyoucos) based on the sedimentation of the particles that make up the soil [23].

These analyses were carried out at the “Luiz de Queiroz” College of Agriculture (Department of Soil Sciences, University of São Paulo, Brazil), according to the methodology described in Van Raij et al. [24]. Physicochemical parameters of the eleven soil samples are shown in Table S2.