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Determination of Nitrogen as Elementary N, an Alternative to Kjeldahl
Abstract
LECO FP-228 N-determinator has been tested and nitrogen contents in samples of both animal and plant origin have been measured. The results were compared to nitrogen contents obtained by Kjeldahl determinations (Kjel-foss). Reproducibility and repeatability were excellent in FP-228 (within 2%) except in samples like maize, hay, corn silage and maize silage. Good agreement was found between the two methods when analysing feeding stuff, barley, wheat, oat, soy bean, bonemeal, fishmeal, pea, molasse, chicken and lamb. Analyses of maize, hay, grass, straw, grass silage, maize silage, sugar beet and potato resulted in greater differences (>5%), FP-228 with the highest results. The differences might be explained by nitrate in a few of the samples tested, but in the other samples tested there were no obvious explanations.
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Citations
Cited by
Effect of maize silage maturity on site of starch and NDF digestion in lactating dairy cows
Jensen, C., Weisbjerg, M. R., Nørgaard, P., & Hvelplund, T. (2005) · Animal Feed Science and Technology · doi:10.1016/j.anifeedsci.2004.10.011 · Cited by 109
Manevski, K., Børgesen, C. D., Andersen, M. N., & Kristensen, I. S. (2015) · Plant and Soil · doi:10.1007/s11104-014-2311-6 · Cited by 95
Dehghani, M. R., Weisbjerg, M. R., Hvelplund, T., & Kristensen, N. B. (2012) · Livestock Science · doi:10.1016/j.livsci.2012.07.031 · Cited by 61
Olijhoek, D. W., Hellwing, A. L. F., Grevsen, K., Haveman, L. S., Chowdhury, M. R., Løvendahl, P., Weisbjerg, M. R., Noel, S. J., Højberg, O., Wiking, L., et al. (2019) · Journal of Dairy Science · doi:10.3168/jds.2019-16329 · Cited by 48
Catch crop strategy and nitrate leaching following grazed grass‐clover
Hansen, E. M., Eriksen, J., & Vinther, F. P. (2007) · Soil Use and Management · doi:10.1111/j.1475-2743.2007.00106.x · Cited by 44
Metadata
- Authors
- Hansen, B.
- Venue
- Acta Agriculturae Scandinavica
- Publisher
- Informa UK Limited
- Published
- 1989-01
- Volume
- 39
- Issue
- 2
- Pages
- 113-118
- ISSN
- 0001-5121 (ISSN-L)
- OpenAlex
- W2015266076
- Cited by
- 396
- References
- 0
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
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- Hansen, B. (1989). Determination of Nitrogen as Elementary N, an Alternative to Kjeldahl. Acta Agriculturae Scandinavica. https://doi.org/10.1080/00015128909438504
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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