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

River wash

Earth science; Soil science

In soil survey a map unit that is a miscellaneous area, which is barren alluvial areas of unstablilized sand silt, clay or gravel reworked by frequently by stream activity.

Passive absorption

Earth science; Soil science

Movement of ions and water into the plant root from diffusion along a chemical potential gradient.

Riparian

Earth science; Soil science

Land adjacent to a body of water that is at least periodically influenced by flooding.

Sustainability

Earth science; Soil science

Managing soil and crop cultural practises so as not to degrade or impair environmental quality on or off site, and without eventually reducing yield potential as a result of the chosen practise ...

Compost

Earth science; Soil science

Organic residues, or a mixture of organic residues and soil, that have been mixed, piled, and moistened, with or without addition of fertiliser and lime, and generally allowed to undergo thermophilic ...

Residual acidity

Earth science; Soil science

Soil acidity that is neutralised by lime or a buffered salt solution to raise the pH to a specified value (usually 7. 0 or 8. 0) but which cannot be replaced by an unbuffered salt solution. It can ...

Lateritic soil

Earth science; Soil science

A suborder of zonal soils formed in warm, temperate, and tropical regions and including the following great soils groups: Yellow Podzolic, Red Podzolic, Yellowish-Brown Lateritic, and Lateritic.