Professor of Soil Chemistry at the Department of Soils at the Federal University of Rio Grande do Sul (UFRGS) and permanent professor at the Graduate Program in Soil Science at UFRGS. Agronomist and Master in Soil Science by the Federal University of Santa Maria (UFSM). Doctor in Soil Science by the UFSM and Doctor in “Sciences de la Terre et de l’Univers, Espace” with a mention “très honorable” by the Université de Poitiers, France. Research is directed toward the dynamics of acidity and nutrients in the soil, efficiency in the use of nutrients and management of fertilization in agricultural systems, and transport of chemical elements (nutrients, metals and geochemicals) from the soil to surface waters.
Tales Tiecher