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A note on the determination of soil organic matter: A wet combustion method

Published online by Cambridge University Press:  27 March 2009

F. Hardy
F. Hardy
Affiliation:
(Imperial College of Tropical Agriculture, Trinidad, British West Indies.)
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Extract

(1) A gasometric method for the determination of organic carbon in soils by the use of sulphuric-chromic acid mixtures at 100° C., as suggested by Watts in 1902, is described, and recommended for use in routine soil analysis.

(2) The method is compared with the Kjeldahl procedure recently introduced by Robinson, McLean and Williams, and is found to give results which are generally similar, though numerically slightly lower.

(3) The wet combustion method is somewhat simpler than the Kjeldahl method, but it has the disadvantage that nitrogen determinations cannot be made simultaneously, so that its usefulness in studies on soil organic matter is decidedly less.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 19 , Issue 4 , October 1929 , pp. 727 - 733
Copyright
Copyright © Cambridge University Press 1929

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References

REFERENCES

(1) Robinson, G. W., McLean, W. and Rice, Williams. J. Agric. Sci. (1929), 19, 315.CrossRefGoogle Scholar
(2) Watts, F. Soils of Dominica; Report on Physical and Chemical Analyses (1902). Barbados, 1903. Issued by the Commissioner of Agriculture for the West Indies.Google Scholar
(3) Cross, F. F. and Bevan, E. F. J. Chem. Soc. (Trans.) (1888), 53, 890.CrossRefGoogle Scholar
(4) Schollenberger, C. J. J. Indus. Engin. Chem. (1916), 8, 1126.CrossRefGoogle Scholar
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