Rice specialist
1961:
Born in Jena, in the former East Germany.
1987:
Completed a master's in tropical-subtropical agriculture at the University of Leipzig, Germany.
1989:
Conducted research on rice fields in southern Russia.
1991:
Completed a doctorate on soil science at the University of Leipzig.
1992-2000:
Soil nutrient specialist with the International Rice Research Institute (IRRI) in the Philippines.
2002-2007:
Professor, soil science and nutrient management, University of Nebraska, United States.
2008:
IRRI head of research.
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