Comparison of total nitrogen methods applied for histosols and soil horizons with high organic matter content

This study was carried out to correlate total nitrogen analyzed by two different methods: Kjeldahl (wet oxidation) and Perkin-Elmer 2.400 Series II-CHN Mode (dry oxidation or combustion) in Histosols and soil surface horizons with high organic matter content, sampled in different regions of Brazil....

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Bibliographic Details
Published in:Communications in soil science and plant analysis 2006-01, Vol.37 (7-8), p.939-943
Main Authors: Pereira, M.G, Espindula, A. Jr, Valladares, G.S, Anjos, L.H.C. dos, Benites, V. de M, Schultz, N
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
chemical analysis
Chemical, physicochemical, biochemical and biological properties
combustion
dry oxidation
Fundamental and applied biological sciences. Psychology
Histic horizons
Histosols
Kjeldahl method
methodology
nitrogen
Organic matter
oxidation
Perkin-Elmer 2400 CHNS method
Physics, chemistry, biochemistry and biology of agricultural and forest soils
soil
soil chemical
soil organic matter
Soil science
tropical soils
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Summary:This study was carried out to correlate total nitrogen analyzed by two different methods: Kjeldahl (wet oxidation) and Perkin-Elmer 2.400 Series II-CHN Mode (dry oxidation or combustion) in Histosols and soil surface horizons with high organic matter content, sampled in different regions of Brazil. A positive correlation (r = 0.95**) was verified between the methods, showing that Kjeldahl, because of its simplicity, can be used to routinely determine total nitrogen content in the evaluated soils.
ISSN:0010-3624
1532-2416
DOI:10.1080/00103620600584743