Long-term Diversified Cropping Systems Study Finds No Carbon Sequestration Benefit
ATTRA
JANUARY 19, 2025
A 20-year study on diversified cropping systems fertilized with livestock manure, led by Iowa State University researchers, showed environmental benefits but not the expected carbon sequestration. The study results were published in Nature Sustainability. The long-term field study at Iowa State’s Marsden Farm contrasts a traditional two-year corn-soybean rotation with three- and four-year systems that include alfalfa, clover, or oats and replace most of the synthetic nitrogen fertilizer fo
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