Skip to content

Minnesota 4R Nutrient Stewardship
Council Directors

2026 Council Members

Chair:  Adam Herges, The Mosaic Company

Vice-Chair:  Rick WalkerNutrien Ag Solutions

Treasurer:  Peter Mead, The Nature Conservancy

Dan Kaiser, University of Minnesota

Warren Formo, Minnesota Agriculture Water Resource Center

Hannah Ammann, NuWay-K&H Cooperative

Heather Donoho, Pine SWCD

Gary Prescher, MN Corn Growers

Amy Robak, Centra Sota Coop

Margaret Wagner, Minnesota Department of Agriculture

Ex-Officio:  Lee Helgen, Minnesota Crop Production Retailers

Ex-Officio: Andy Oeding, Nutrien Ag Solutions

Ex-Officio: Leif Fixen, The Nature Conservancy

4R Certification Logo