**Author details**

Flávio José Rodrigues Cruz1 \*, Renato de Mello Prado1 , Guilherme Felisberto1 , Águila Silva Santos2 and Rafael Ferreira Barreto1

\*Address all correspondence to: fjrc@bol.com.br

1 Department of Soils and Fertilizers, Faculty of Agricultural and Veterinary Sciences, Plant Nutrition Study Group-GenPlant, University State of São Paulo "Júlio de Mesquita Filho", São Paulo, Brazil

2 Department of Plant Production, Faculty of Agricultural Engineering and Veterinary Sciences, São Paulo State University, São Paulo, Brazil
