Determination of Kjeldahl Nitrogen and Exchangeable Ammonium in Soil by the Indophenol Method
- 1 January 1986
- journal article
- research article
- Published by Taylor & Francis in Acta Agriculturae Scandinavica
- Vol. 36 (1) , 60-70
- https://doi.org/10.1080/00015128609435795
Abstract
Modifications of the indophenol method for determination of Kjeldahl-N and exchangeable NH4-N have been investigated. Analytical results for NH4-N in Kjeldahl extracts and 2 M KCl extracts have been compared with NH4-N determinations by distillation and a selective ammonia electrode.Keywords
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