8 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
Add a new termContributors in Soil science
Soil science
Mull
Earth science; Soil science
A forest humus type characterised by intimate incorporation of organic matter into the upper mineral soil (i.e. a well developed A horizon) in contrast to accumulation on the surface. (Sometimes ...
Ammonium phosphate
Earth science; Soil science
A generic class of compounds used as phosphorus fertilizers. Manufactured by the reaction of anhydrous ammonia with orthophosphoric acid or superphosphoric acid to produce either solid or liquid ...
Desert crust
Earth science; Soil science
A hard layer, containing calcium carbonate, gypsum, or other binding material, exposed at the surface in a desert region.
Most probable number
Earth science; Soil science
A method for estimating microbial numbers in soil based on dilution to extinction.
Soil order
Earth science; Soil science
A group of soils in the broadest category. For example, in the 1938 classification system. The three soil orders were zonal soil, intrazonal soil, and azonal soil. In the 1975 there were 10 ...
Multiband photography
Earth science; Soil science
A colour picture produced by assigning a colour to a particular spectral band. Ordinarily blue is assigned to band 1 or 4 (~ 500 to 600 nm), green to band 2 or 5 (~ 600 to 700 nm), and red to band 3 ...
Colour composite
Earth science; Soil science
A colour picture produced by assigning a colour to a particular spectral band. Ordinarily blue is assigned to band 1 or 4 (~ 500 to 600 nm), green to band 2 or 5 (~ 600 to 700 nm), and red to band 3 ...
