Soil fertility is a key factor in determining agricultural potential. Soil texture varies with particle size, from clay (fine) through silt (medium) to sand (coarse). Loam is best for plant growth.
Tunisia: Cracked clay soil may be the result of
erosion or drought
FAO photo by F. Botts
- More photos in series:
- Peru: Women farmers applying fertilizer to a field of freshly sown potato seeds
- Viet Nam: Smallholder farmers preparing sandy soil for planting trees
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- Photofile archive
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