1. Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), São Paulo, Brazil
2. Campus “Professora Cinobelina Elvas”, Federal University of Piauí (UFPI), Bom Jesus, Brazil
3. Insitute of Agricultural Science, Soil Sector, Federal Rural University of Amazon (UFRA), Belém, Brazil