Summary
Determination of total soil nitrogen is usually performed by digesting a soil sample with sulfuric acid, salts and a catalyzing agent. Organic carbon determinations may be performed in a chromic acid digest. Several possibilities were investigated in order to combine the two digestion methods into a single chromic acid digest. re]19760603
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Kempers, A.J. Determination of the C/N ratio in a chromic acid soil digest. Plant Soil 46, 699–703 (1977). https://doi.org/10.1007/BF00015935
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DOI: https://doi.org/10.1007/BF00015935