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This article in SSSAJ

  1. Vol. 33 No. 5, p. 809-811
     
    Received: Mar 30, 1969
    Published: Sept, 1969


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doi:10.2136/sssaj1969.03615995003300050049x

An Organic Carbon-Organic Matter Conversion Equation for Pennsylvania Surface Soils1

  1. R. W. Ranney2

Abstract

Abstract

Low temperature ashing was used to determine the organic matter content of soils by weight loss. This technique utilizes oxygen excited by radiofrequency energy to effect oxidation at relatively low temperatures. Ashing at 375C was used for samples high in organic matter. Corrections were applied for weight loss of inorganic constituents and for incomplete oxidation of organic matter. The following regression equation was developed to convert organic carbon percent to organic matter percent in Pennsylvania surface soils:

Percent organic matter = 0.35 + 1.80 × percent organic carbon.

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