Determination of Total Nitrogen and Carbon in Soils by a Commercial Dumas Apparatus1
- B. A. Stewart,
- L. K. Porter and
- W. E. Beard2
A modified Dumas procedure is presented, which extends its application to soils of high organic matter content. The modification eliminates the interference of CH4 that often causes values to be from 5 to 20% higher than Kjeldahl values. The instrument used for the Dumas procedure can be easily converted to determine C in soils. Changes necessary for this conversion are presented.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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