33 Terms
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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
Taxadjunct
Earth science; Soil science
A soil that is correlated as a recognized, existing soil series for the purpose of expediency. They are so like the soils of the defined series in morphology, composition, and behaviour that little ...
Cryic
Earth science; Soil science
A soil temperature regime that has mean annual soil temperatures of >0°C but 5°C difference between mean summer and mean winter soil temperatures at 50 cm, and cold summer temperatures.
Hydrated lime
Earth science; Soil science
A liming material composed mainly of calcium and magnesium hydroxides that reacts quickly to neutralise acid soils.
Exchangeable nutrient
Earth science; Soil science
A plant nutrient that is held by the adsorption complex of the soil and is easily exchanged with the anion or cation of neutral salt solutions.
Bisect
Earth science; Soil science
A profile of plants and soil showing the vertical and lateral distribution of roots and tops in their natural position.
Undifferentiated group
Earth science; Soil science
A kind of map unit used in soil surveys comprised of two or more taxa components that are not consistently associated geographically. Delineations show the size, shape, and location of a landscape ...
Saline soil
Earth science; Soil science
A nonsodic soil containing sufficient soluble salt to adversely affect the growth of most crop plants. The lower limit of saturation extract electrical conductivity of such soils is conventionally ...
