18 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
Add a new termContributors in Soil science
Soil science
Phase
Earth science; Soil science
A utilitarian grouping of soils defined by soil or environmental features that are not class differentia used in U. S. system of soil taxonomy, e.g., surface texture, surficial rock fragments, rock ...
Soil amendment
Earth science; Soil science
Any material such as lime, gypsum, sawdust, compost, animal manures, crop residue or synthetic soil conditioners that is worked into the soil or applied on the surface to enhance plant growth. ...
Glaciolacustrine deposits
Earth science; Soil science
Material ranging from fine clay to sand derived from glaciers and deposited in glacial lakes by water originating mainly from the melting of glacial ice. Many are bedded or laminated with varves.
Active absorption
Earth science; Soil science
Movement of ions and water into the plant root because of metabolic processes by the root, frequently against an electrochemical potential gradient.
Saponite
Earth science; Soil science
A trioctahedral smectite containing magnesium with the majority of the charge originating in the tetrahedral layers.
Aqualfs
Earth science; Soil science
Alfisols that are saturated with water for periods long enough to limit their use for most crops other than pasture or woodland unless they are artificially drained. Aqualfs have mottles, ...
