Using an Agroecological Approach to Farming Systems Research

Iowa State University journal series 19573. We gratefully acknowledge the help of the following individuals who assisted with this research or reviewed this manuscript: C. Cambardella, M. Duffy, D. Karlen, B. Burcham, R. Turnbull, and H. Friedrich. We also thank the Leopold Center for Sustainable Agriculture and the USDA–IFAFS (Initiative for Future Agriculture and Food Systems) program for funding this project, and Iowa State University College of Agriculture, the Neely-Kinyon Association, and Heartland Organic Marketing Cooperative for their support of this research and education program. ADDITIONAL INDEX WORDS. farming systems research, organic, compost, soil quality, long-term research

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