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

Structural diversity

Earth science; Soil science

Microbial community description based on composition of different taxa and DNA/RNA sequence types.

Blown-out land

Earth science; Soil science

In soil survey a map-unit which is a type of miscellaneous area from which most of the soil has been removed by wind erosion. The areas are generally shallow depressions with flat, irregular floors, ...

Rubble land

Earth science; Soil science

Areas with 90% or more of the surface covered with cobbles, stones, and boulders. Commonly occurs as colluvium at the base of mountains but some areas may be left on mountainsides by glaciation or ...

Duripan

Earth science; Soil science

A subsurface soil horizon that is cemented by illuvial silica, usually opal or microcrystalline forms of silica, to the degree that less than 50 percent of the volume of air-dry fragments will slake ...

Organic farming

Earth science; Soil science

Crop production system that reduces, avoids or largely excludes the use of synthetically compound fertilizers, pesticides, growth regulators, and livestock feed additives.