Invited Speakers

Ketterings Photo

Quirine Ketterings is an Associate Professor of Nutrient Management in Agricultural Systems at Cornell University. She leads the Cornell Nutrient Management Spear Program, the applied research and extension program in field crops nutrient of the College of Agriculture and Life Sciences ( She received a B.Sc. degree in Tropical Agriculture from the Internationale Agrarische Hogeschool Larenstein (now Van Hall Larenstein, University of Professional Education) and M.Sc. degree in Soil and Water from Wageningen University and Research Center, both in the Netherlands and a Ph.D. in Environmental Sciences from The Ohio State University, in the United States. Dr. Ketterings’ interests include: the use of manure and compost for fertility management, fertilizer guidelines for yield and quality of field crops, whole-farm nutrient management for dairy operations, development of indicators of environmental impact of nutrient management practices, and adaptive management as a process to achieve impact at field, farm, watershed and state levels. Phone: (607) 255-3061; Email:

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