On the determination of soil carbon |
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Authors: | P I Orphanos |
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Institution: | (1) Agricultural Research Institute, Nicosia, Cyprus |
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Abstract: | Summary Determinations of organic carbon on 12 carbonate-free terra rossa soil samples from Cyprus with the Walkley-Black method and the Allison reference method showed degree of carbon recovery with the Walkley-Black method ranging between 69.5 and 79.0 per cent. Determinations of organic carbon on 15 carbonaceous (21–28 per cent CaCO3) alluvial soil samples with the method of Allison gave erratic results apparently because the carbonate could not be quantitatively removed prior to organic-C determination.Finally a rapid gravimetric method for estimating calcium carbonate in soils as refined by Bauer et al.
3 was tested on the 15 alluvial soil samples mentioned above and found as precise and as accurate as the Allison reference method. |
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