Preferred Term:
mull
Definition:
A soil whose upper mineral layer has become intimately mixed (mainly through the action of earthworms) with amorphous organic material, sometimes to a depth of 1.2 to 1.5 meters (4 to 5 feet).
Concept Schemes:
NALT Full
Broader Concept:
URI:
https://lod.nal.usda.gov/nalt/53680
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RDF/XMLCreated 2006-01-19, last modified 2014-07-31