1. Federal University of Mato Grosso do Sul (UFMS), Chapadão do Sul, Brazil
2. Laboratory of Plant Nutrition, Department of Soils and Fertilizers, São Paulo State University (UNESP), São Paulo, Brazil
3. Department of Agronomy, Mato Grosso State University (UNEMAT), Alta Floresta, Brazil
4. Department of Agronomy, Federal University of Piauí (UFPI), Teresina, Brazil