Soil science

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

Rock fragments

Earth science; Soil science

Unattached pieces of rock 2 mm in diameter or larger that are strongly cemented or more resistant to rupture.

Citrate-soluble phosphorus

Earth science; Soil science

The fraction of total P in fertiliser that is insoluble in water but soluble in neutral 0. 33 M ammonium citrate. Together with water-soluble phosphate, this represents the readily available P ...

Artesian well condition

Earth science; Soil science

The occurrence of the water level in a well rising above the top of the confined aquifer or, in special occasions, above the soil surface.

Labile pool

Earth science; Soil science

The sum of an element in the soil solution and the amount of that element readily solubilized or exchanged when the soil is equilibrated with a salt solution.

Mass

Earth science; Soil science

The property of a material that describes the quantity of matter in it; the ratio of the weight of a body and the acceleration due to gravity.

Cryods

Earth science; Soil science

Spodosols that have a cryic or pergelic soil temperature regime.

Nitrogen cycle

Earth science; Soil science

The sequence of biochemical changes undergone by nitrogen wherein it is used by a living organism, transformed upon the death and decomposition of the organism, and converted ultimately to its ...