Soil Science Society of America Journal · 1975 · 85 citations · 0 references
AgricultureAgronomySoil SciencesSoil ChemistrySoil Organic MatterSoil ScienceSoil AciditySoil Chemical PropertiesSoil CompositionSoil Organic Matter ChemistrySoil PhSoil QualityOrganic ContentOrganic Matter ContentOrganic Matter Rich SoilsOrganic Soil AmendmentsSilt LoamSoil Organic Matter AmendmentsSoil Organic Matter CharacterizationSoil Organic Matter Content
Abstract Varying amounts (0–20 meq/100g) of nitric acid were added to samples from six depths of a Maury silt loam which varied in organic matter content from 5.11 to 0.80%. Aluminum extracted by 1 N KCl was found to be lower as organic matter content increased at any given pH level. This finding helps to explain the successful growth of crops in killed sods where the surface soil is acid but rather high in organic matter; it also may account for some of the benefit of organic amendments on acid soils.