Agronomic, ecological and economic comparisons of conventional and low-external-input cropping systems
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Date
2011-01-01
Authors
Liebman, Matthew
Chase, Craig
Wander, Michelle
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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
Low-external-input cropping systems were compared to conventional practices over several years with contrasting weather conditions. The results offer several potential options for farmers in times of rising fossil fuel costs. Diversified low-external input systems consistently outperform conventional systems on a number of important measures.