_:b670475514 . _:b670475514 . _:b670492802 . "In soils, these materials include clay and organic matter particles. Soil CEC is measured in millequivalents per 100 grams of soil (meq/100g). A meq is the number of ions which total a specific quantity of electrical charges. Common soil cations include: calcium (Ca++), magnesium (Mg++), potassium (K+), ammonium (NH4+), hydrogen (H+) and sodium (Na+)."@en . _:b670475514 . . . . _:b670475514 . _:b670492802 . "cation exchange capacity"@en . . _:b670492802 . . _:b670475514 . _:b670492802 . "2021-12-22T16:39:01Z"^^ . "CEC"@en . "A physical quality which inheres in an environmental material by virtue of the material's ability to adsorb exchangeable cations."@en . _:b670492802 .