He studied in Kassa (today: Kosice, Slovakia) and his economic study at University of Hohenheim.
Between 1992 and 1995, Mr. Tafaj completed his second PhD at the University of Hohenheim.
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In 1999, Mr. Tafaj was awarded a fellowship from the Alexander von Humboldt Foundation, which allowed him to return to Germany and work as a visiting professor at the University of Hohenheim.
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Herold graduated from the Agricultural College Hohenheim in 1925, worked at a grape breeding station in Naumburg 1926-1928 and in 1928 became the head of a grape breeding station in Weinsberg, which during his early years was called Württembergischen Anstalt für Rebenzüchtung und Rebenpfropfung and from 1947 Staatliche Lehr- und Versuchsanstalt für Wein- und Obstbau (LVWO).
He worked at University of Hohenheim, Stuttgart, Germany from 1976–78, 1988–90 and 2007–11 in Maize breeding, genetics and Biotechnology.
The Institute is organized as an association in which, in addition to the State of Baden-Württemberg and the City of Stuttgart, the Universities of Hohenheim and Stuttgart, the Fachhochschulen of Baden-Württemberg, German-American organizations, the U.S. Embassy in Germany as well as private persons and corporations are represented.
In 1920 she completed her Habilitation at the Agricultural University of Hohenheim with a dissertation on Uptake of Phosphoric Acid and Soil Reactions.