Agronomist from the Federal Rural University of Pernambuco (UFRPE), Master in Soil Science from the Federal Rural University of Pernambuco, PhD in Soil and Plant Nutrition from the Federal University of Viçosa, Post-Doctorate in Soil and Plant Nutrition at the Federal University of Viçosa, Post-Doctorate in Ecosystem Science and Management at the Texas A & M University. Areas of expertise: semiarid lands, soil salinity and sodicity, evaluation of soil degradation and remediation of degraded areas, soil organic matter, phytoremediation of salt affected soils. Professor of the Agronomy Department of UFRPE, teaching soil subjects for undergraduate and graduate courses. Permanent professor in the graduate programs: in Soil Science, and in Forest Sciences of UFRPE.