Impacts of conventional and diversified rotation systems on crop yields, profitability, soil functions and environmental quality
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Date
2013-01-01
Authors
Liebman, Matthew
Chase, Craig
Wander, Michelle
Tomer, Mark
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Abstract
Comparisons were made among contrasting cropping systems within a long-term, large-scale field experiment in Boone County, Iowa. Combining crop diversity with lower herbicide inputs and non-transgenic crops was effective in reducing requirements for nitrogen fertilizer; maintaining or improving weed suppression, grain yields, and profi ts; and increasing several soil quality indicators.
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