Leopold Center Pubs and Papers Leopold Center for Sustainable Agriculture 9-2012 Energy and Economic Returns by Crop Rotation Ann M. Johanns Iowa State University, aholste@iastate.edu Craig Chase Iowa State University, cchase@iastate.edu Mat Liebman Iowa State University, mliebman@iastate.edu Follow this and additional works at: htp://lib.dr.iastate.edu/leopold_pubspapers Part of the Agricultural Economics Commons , Agricultural Science Commons , Agronomy and Crop Sciences Commons , and the Oil, Gas, and Energy Commons Tis Report is brought to you for free and open access by the Leopold Center for Sustainable Agriculture at Iowa State University Digital Repository. It has been accepted for inclusion in Leopold Center Pubs and Papers by an authorized administrator of Iowa State University Digital Repository. For more information, please contact digirep@iastate.edu. Recommended Citation Johanns, Ann M.; Chase, Craig; and Liebman, Mat, "Energy and Economic Returns by Crop Rotation" (2012). Leopold Center Pubs and Papers. 193. htp://lib.dr.iastate.edu/leopold_pubspapers/193