A comparison of agricultural systems at the Allee Research Center
Date
1994
Authors
Shannon, Dennis
Honeyman, Mark
McMillin, Roger
Jolly, Robert
Osei, Edward
Duffy, Michael
Grundman, Dean
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Leopold Center for Sustainable Agriculture
The Leopold Center is a research and education center on the campus of Iowa State University created to identify and reduce negative environmental and social impacts of farming and develop new ways to farm profitably while conserving natural resources.
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Leopold Center for Sustainable Agriculture
Abstract
The petrochemical-dependent agriculture that developed in the export-oriented economy of the 1970's proved vulnerable to high energy costs and volatile export markets as well as detrimental to soil and water resources. This project was designed to compare a petrochemical-based, high-tillage, low-management cropping system (System I) with two alternative systems: a ridge-till, reduced fertilizer and pesticide, high-management system (System II) and a rotational, low-pesticide, low-fertilizer conventional tillage system (System III).