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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
Lithiophorite
Earth science; Soil science
(Al,Li)MnO2(OH)2 A black manganese oxide that is common in iron-manganese nodules of acid soils. It has a layer structure.
Mineral
Earth science; Soil science
A naturally occurring homogeneous solid, inorganically formed, with a definite chemical composition and an ordered atomic arrangement.
Channel
Earth science; Soil science
(i) A tubular-shaped void. (ii) A natural stream that conveys water; a ditch excavated for the flow of water.
Hydrometer
Earth science; Soil science
A sealed cylinder with weighted bulb and graduated stem used to measure the density of soil suspensions.
Bentonite
Earth science; Soil science
A relatively soft rock formed by chemical alteration of glassy, high silica content volcanic ash. This material shows extensive swelling in water and has a high specific surface area. The principal ...
Coliform
Earth science; Soil science
A general term for a group of bacteria that inhabit the intestinal tract of humans and other animals. Their presence in water constitutes presumptive evidence for faecal contamination. Includes all ...
Underfit stream
Earth science; Soil science
A stream that appears to be too small to have eroded the valley in which it flows; a stream whose volume is greatly reduced or whose meanders show a pronounced shrinkage in radius. It is a common ...
