1. Center of Nuclear Energy in Agriculture, University of São Paulo, Av. Centenário 303, Piracicaba 13400-970, SP, Brazil
2. Department of Agronomy, State University at Maringá, Av. Colombo, 5790, Maringá 87020-900, PR, Brazil
3. Syngenta Crop Protection, Municipal HBR-333 Road, Holambra 13825-000, SP, Brazil
4. Brazilian Agricultural Research Company, EMBRAPA, Carlos João Strass Road, Londrina 86085-981, PR, Brazil