Number of Commodities (crop and livestock enterprises) Produced for Sale on at least 1 percent of all Iowa Farms, 1920 to 2002

December 2004

Leopold Center for Sustainable Agriculture

This chart shows the declining level of diversity of crop and livestock produced on Iowa farms since 1920.

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The Leopold Center was established by the 1987 Iowa Groundwater Protection Act as a research and education center at Iowa State University to develop sustainable agricultural practices that are both profitable and conserve natural resources. Iowa State does not discriminate on the basis of race, color, age, religion, national origin, sexual orientation, sex, marital status, disability, or status as a U.S. Vietnam Era Veteran. Any persons having inquiries concerning this may contact the Director of Affirmative Action, 3210 Beardshear Hall, (515) 294-7612.

This page was found at http://www.leopold.iastate.edu/pubs-and-papers/2004-12-commodities on 01/21/2013