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

Consistence

Earth science; Soil science

The attributes of soil material as expressed in degree of cohesion and adhesion or in resistance to deformation or rupture.

Specific adsorption

Earth science; Soil science

The strong adsorption of ions or molecules on a surface. Specifically adsorbed materials are not readily removed by ion exchange.

Soil test calibration

Earth science; Soil science

The process of determining the crop nutrient requirement at different soil test values.

Rhizocylinder

Earth science; Soil science

The plant root plus the adjacent soil that is influenced by the root.

Soil texture

Earth science; Soil science

The relative proportions of the various soil separates in a soil as described by the classes of soil texture shown in Fig. 1. The textural classes may be modified by the addition of suitable ...

Soil strength

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 ...

Talc

Earth science; Soil science

Si 4 Mg 3 O 10 (OH) 2 A trioctahedral magnesium silicate mineral with a 2:1 type layer structure but without isomorphous substitution. May occur in soils as an inherited mineral.