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Substratum  [ Horticulture - Ecology - Pedology ]
( Plural: Substrata or Substratums )

Dictionary of botanic terminology
index of names

  Underlying base: any stratum, base, layer, or element lying underneath another.  
In horticulture: Any materials allowing the growth of roots of a plant.
See also: Potting medium, soil
In biology and ecology: A nonliving surface, layer or material on which an organism grows or is attached.
In microbiology: The solid surface over which a cell moves, or upon which a cell grows
In pedology and agronomy: A layer of earth beneath the surface soil; The part f the soil below the solum; the subsoil.





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