1. Department of Agronomy, Federal University of Viçosa, Viçosa, Brazil
2. Ecotoxicology Laboratory, Center of Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, Brazil
3. Department of Soil Science, “Luiz de Queiroz” College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, Brazil