1. Department of Soils and Agricultural Engineering, Federal University of Paraná (UFPR), Curitiba, Brazil
2. Department of Agriculture, Federal Institute of Southeast Minas Gerais, Barbacena, Brazil
3. USDA-ARS National Soil Dynamics Laboratory, Auburn, AL, USA
4. Department of Ecology, Regional Integrated University of Alto Uruguai and Missões (URI), Erechim, Brazil