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This article in SSSAJ

  1. Vol. 28 No. 3, p. 366-368
     
    Received: Aug 6, 1963
    Published: May, 1964


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doi:10.2136/sssaj1964.03615995002800030019x

Determination of Total Nitrogen and Carbon in Soils by a Commercial Dumas Apparatus1

  1. B. A. Stewart,
  2. L. K. Porter and
  3. W. E. Beard2

Abstract

Abstract

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.

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