180 likes | 424 Vues
Food Production. Humans have historically depended on three systems for their food supply:Croplands
E N D
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 1930s known as the dirty thirties dust storms would spread dust as far as Georgia and 1930s 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.