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Noun: marl  maa(r)l
  1. A loose and crumbling earthy deposit consisting mainly of calcite or dolomite; used as a fertilizer for soils deficient in lime
    "Farmers applied marl to their fields to improve soil pH"
Verb: marl  maa(r)l
  1. Apply marl as fertilizer
    "Farmers marled the fields to improve soil quality"

Derived forms: marled, marling, marls

Type of: dirt, soil

Encyclopedia: Marl, North Rhine-Westphalia