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Deb Gangwish inspects soil on her farm near Shelton, Neb. Dan Charles hide caption

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Dan Charles

A Grass-Roots Movement For Healthy Soil Spreads Among Farmers

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Green shoots of cereal rye, a popular cover crop, emerge in a field where corn was recently harvested in Iowa. The grass will go dormant in winter, then resume growing in the spring. Less than three percent of corn fields in the state have cover crops. Courtesy of Practical Farmers of Iowa hide caption

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Courtesy of Practical Farmers of Iowa