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food and soil resources

Food Production. Humans have historically depended on three systems for their food supply:Croplands

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food and soil resources

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    1. Chapter 14 Food and Soil resources

    3. Three most important Crops

    4. High-Input and Low-Input Agriculture

    5. Continued….

    6. Green Revolution

    7. Low Impact Agrodiversity

    8. Soil Erosion

    9. Case study – Dust Bowl 1930’s known as the “dirty thirties” dust storms would spread dust as far as Georgia and 1930’s known as the “dirty thirties” dust storms would spread dust as far as Georgia and

    10. Other threats to soil

    11. Soil Conservation Conservation tilling Minimum tilling No-tilling Terracing- reduces erosion Contour farming – rows naturally dam water Strip cropping – Alternating rows of crops. Cover crops between shallow root crops for example.

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