Soil physical and chemical properties were determined by the
appropriate method: soil particle size distribution by the
hydrometer method, pH of a 1:2.5 soil/water suspension with a
pH meter, electrical conductivity (EC) in a 1:5 soil/water
suspension with an EC meter, soil organic matter by the
Walkley-Black wet oxidation method, total nitrogen by the
Kjeldahl method, and CaCO3 content by the Scheibler calcimeter