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

Soil penetration resistance

Earth science; Soil science

A transient localised soil property which is a combined measure of a given pedon's, horizon's, or other soil subunit's solid phase adhesive and cohesive status. This property is most easily affected ...

Diffuse double layer

Earth science; Soil science

A conceptual model of a heterogeneous system that consists of a solid surface (e.g. clay or oxide surface) having a net electrical charge together with an ionic swarm in solution containing ions of ...

Brown forest soils

Earth science; Soil science

A great soil group of the intrazonal order and calcimorphic suborder, formed on calcium-rich parent materials under deciduous forest, and possessing a high base status but lacking a pronounced ...

Till

Earth science; Soil science

(i) Unsorted and unstratified earth material, deposited by glacial ice, which consists of a mixture of clay, silt, sand, gravel, stones, and boulders in any proportion. (ii) To prepare the soil for ...

Nutrient diffusion

Earth science; Soil science

A random movement of ions or molecules due to thermal agitation which tends to move because of their chemical activity gradient from areas of higher to lower concentration.

Brown soils

Earth science; Soil science

A great soil group of the temperate to cool arid regions, composed of soils with a brown surface and a light-colored transitional subsurface horizon over calcium carbonate accumulation.