Sustainable Agriculture at UC Davis:

• Agricultural Sustainability Institute
• Sustainable Agriculture Farming Systems Project
• University of California Sustainable Agriculture Research and Education Project
• Sustainable Agriculture at UC Davis
• Environmental Plant Biology at UC Davis

Long-Term Agricultural Research Sites

• Rothamsted Experiment Station
• Askov Long-term Experiments on Animal Manure and Mineral Fertilizers; Denmark
• Crop Sciences Research and Education Center (CSREC) Morrow Plots; University of Illinois
• Sanborn Field; University of Missouri
• Long-Term Ecological Research in Row Crop Agriculture; Michigan
• The Rodale Institute; Kutztown, PA
• Glenlea Long-term Rotation Study; University of Manitoba, Department of Plant Sciences
• Wisconsin Integrated Cropping Systems Trial (WICST) Project
• Michael Fields Agricultural Institute; East Troy, Wisconsin
• Center for Environmental Farming Systems (CEFS); North Carolina State University and North Carolina A&T State University
• Southwest Research and Outreach Center - Variable Input Crop Management Systems (VICMS) Trial; University of Minnesota
• Alabama's "Old Rotation"
• Cullar's Rotation at Auburn Universtiy

Directories for Sustainable Agriculture

• Purdue University directory of sustainable agriculture sites
• ISOFAR - International Society of Organic Agriculture Research