Dr. Charles Wortmann

Professor Charles Wortmann has worked for over 20 years in Africa as an independent consultant and 18 years at the University of Nebraska-Lincoln (UNL) as a cropping system/soil management research and extension specialist. He has mentored 55 graduate students, hosted numerous African visiting scientists, and initiated the ASA-Global Agronomy-Agronomy in Africa community. A prolific researcher with over 150 publications, he focuses on improving smallholder profitability through climate-resilient practices, fertilizer decision tools, and nutrient management to reduce environmental impact.