 | Better Farming Series 04 - The Soil: How the Soil is Made up (FAO - INADES, 1976, 37 p.) |
 |  | Different kinds of land |
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The subsoil
The subsoil is often very deep.
It is always very poor.
It
has little mineral salts (see Booklet No. 1 page 19).
It is hard and
difficult to dig.
It is here that tree roots find their water during the dry
season.
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