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

Well

Earth science; Soil science

A pipe perforated fro a prescribed interval (depth increment) in ort to equilibrate with the adjoining aquifer for measurement of the depth to the free-water surface, i.e., water table.

Coating

Earth science; Soil science

A layer of a substance completely or partly covering a surface of soil material. Coatings include clay coatings, calcite coatings, gypsum coatings, organic coatings, salt coatings, etc.

Nutrient stress

Earth science; Soil science

A condition occurring when the quantity of nutrient available reduces growth. It can be from either a deficient or toxic concentration.

Interfluve

Earth science; Soil science

A landform composed of the relatively undissected upland or ridge between two adjacent valleys or drainageways.

Yield curve

Earth science; Soil science

A graphical representation of nutrient application rate or availability versus crop yield or nutrient uptake.

Ions

Earth science; Soil science

Atoms, groups of atoms, or compounds, which are electrically charged as a result of the loss of electrons (cations) or the gain of electrons (anions).

Nitric phosphates

Earth science; Soil science

Fertilisers made by processes involving treatment of phosphate rock with nitric acid or a mixture of nitric, sulfuric, or phosphoric acids, usually followed by ammoniation. Water solubility of the ...