Prevent Soil Erosion
The Soil Conservation Service estimates that more than three billion tons of topsoil are eroded from the United States croplands each year. That means soil is eroding seven times faster than it is built up naturally. Soil is the foundation of the food chain in organic farming. But in conventional farming the soil is used more as a medium for holding plants in a vertical position so they can be chemically fertilized. As a result, American farms are suffering from the worst soil erosion in history.
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