3 Terms
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Soil science
That science dealing with soils as a natural resource on the surface of the earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils per se; and these properties in relation to the use and management of soils.
Industry: Earth science
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Soil science
Fragipan
Earth science; Soil science
A natural subsurface horizon with very low organic matter, high bulk density and/or high mechanical strength relative to overlying and underlying horizons; has hard or very hard consistence ...
Glacial drift
Earth science; Soil science
A general term applied to all mineral material transported by a glacier and deposited directly by or from the ice, or by running water emanating from a glacier. Drift includes unstratified material ...
Diatomaceous earth
Earth science; Soil science
A geologic deposit of fine, greyish siliceous material composed chiefly or wholly of the remains of diatoms. It may occur as a powder or as a porous, rigid material.
Petroferric contact
Earth science; Soil science
A boundary between soil and a continuous layer of indurated soil in which iron is an important cement. Contains little or no organic matter.
Somewhat poorly drained
Earth science; Soil science
A soil drainage class referring to soils which have evidence of seasonal water tables at depths between 8 and 18 inches.
Torric
Earth science; Soil science
A soil moisture regime defined like aridic moisture regime but used in a different category of the U. S. soil taxonomy.
Aggregate crumb
Earth science; Soil science
A soft, porous, more or less rounded ped from 1 to 5 mm in diameter.
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