| Автор | Eiland, Finn |
| Автор | Nielsen, Jørgen Dissing |
| Дата выпуска | 1996 |
| dc.description | AbstractThe persulphate oxidation (TPN) and the Kjeldahl methods (TKN) were compared for measurement of total N in soils and soil extracts. The TPN method was adapted for optimum recovery and precision in the determination of total N. Measurement of total N with TPN and TKN procedures showed the methods to be comparable for both mineral soils and soil extracts. For soil samples with a high content of C (> 5%) and N (> 0.5%), the total N content was highest with TKN. The Flow Injection Analysis (FIA) was very suitable for anlaysis of nitrate in persulphate digestions. The TPN method combined with FIA estimation of nitrate is recommended for analysis of total N in soils and in soil extracts for microbial biomass determinations. |
| Формат | application.pdf |
| Издатель | Taylor & Francis Group |
| Копирайт | Copyright Taylor and Francis Group, LLC |
| Тема | analytical methods |
| Тема | microbial biomass N |
| Тема | nitrogen |
| Тема | soil N |
| Название | A Method Using Peroxydisulphate Digestion for Total N Analyses in Soils and in Soil Microbial Biomass Extracts |
| Тип | research-article |
| DOI | 10.1080/09064719609413119 |
| Electronic ISSN | 1651-1913 |
| Print ISSN | 0906-4710 |
| Журнал | Acta Agriculturae Scandinavica, Section B – Soil & Plant Science |
| Том | 46 |
| Первая страница | 81 |
| Последняя страница | 85 |
| Аффилиация | Eiland, Finn; Danish Institute of Plant and Soil Science, Research Centre Foulum |
| Аффилиация | Nielsen, Jørgen Dissing; Danish Institute of Plant and Soil Science, Research Centre Foulum |
| Выпуск | 2 |
| Библиографическая ссылка | Bremner, J. M. and Mulvany, C. S. 1982. “Principles of Kjeldahl methods”. In Methods of Soil Analysis Edited by: Page, A. L. 599–616. |
| Библиографическая ссылка | Brookes, P. C., Andre Landman, G., Pruden, G. and Jenkinson, D. S. 1985a. Chloroform fumigation and the release of soil nitrogen: A rapid direct extraction method to measure microbial biomass nitrogen in soil. Soil Biol. Biochem., 17: 837–842. |
| Библиографическая ссылка | Brookes, P. C., Kragt, J. F., Powlson, D. S. and Jenkinson, D. S. 1985b. Chloroform fumigation and the release of soil nitrogen: the effect of fumigation time and temperatures. Soil Biol. Biochem., 17: 831–835. |
| Библиографическая ссылка | Cabrera, M. L. and Beare, M. H. 1993. Alkaline persulfate oxidation for determining total nitrogen in microbial biomass extracts. Soil Sci. Soc. Am. J., 57: 1007–1012. |
| Библиографическая ссылка | Danish Standardisation Council. 1975. Determination of nitrogen content after oxidation by peroxydsulphate (in Danish). DS, 221: 1–7. |
| Библиографическая ссылка | Smart, M. M., Reid, F. A. and Jones, J. R. 1981. A comparison of a persulphate digestion and the Kjeldahl procedure for determination of total nitrogen in aqueous samples. Water Res., 15: 919–921. |
| Библиографическая ссылка | Smart, M. M., Rada, R. G. and Donnermeyer, G. N. 1983. Determination of total nitrogen in sediments and plants using persulphate digestion. An evaluation and comparison with the Kjeldahl procedure. Water Res., 17: 1207–1211. |
| Библиографическая ссылка | Tecator. 1984. Determination of nitrate nitrogen in soil samples extractable by 2 M KCl using flow injection analysis Application Note 1–6 |
