The study of soils with principal interest on characterization and differentition of their properties and with only minor emphasis on their practical use
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5. CLASSIFICATION - Food and Agriculture Organization of the ...
Most papers on the agricultural use of peat are found in soil science and ... For our purpose, such systems are of interest only if there is a relation with ...
6. Soil Texture - Food and Agriculture Organization of the ...
Fine earth is a mixture of sand, silt and clay. You must be sure to use only fine earth to perform the following field tests.
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