Geoderma · 2003 · 314 citations · 18 references
AgricultureEarth SciencesSoil SciencesSoil BiogeochemistrySoil ChemistrySoil Organic MatterClay MineralogyHumus FormationLabile Organic MatterSoil AciditySoil AlkalinitySoil PhHumic Substance RemovalHumification ProcessesHumus ChemistryHumus CompositionSoil Organic Matter Formation
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Methods of soil analysis. Part 2. Chemical and microbiological properties.
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