[1]RONG Guohua,ZHOU Jingyun,WU Hongyu,et al.Comparative Study on the Flow Analyzer and the Kjeldahl Nitrogen Analyzer for Measuring Soil Total Nitrogen[J].Research of Soil and Water Conservation,2023,30(01):204-208.[doi:10.13869/j.cnki.rswc.2023.01.030]
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Comparative Study on the Flow Analyzer and the Kjeldahl Nitrogen Analyzer for Measuring Soil Total Nitrogen
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
30
Number of periods:
2023 01
Page number:
204-208
Column:
Public date:
2023-01-10
- Title:
- Comparative Study on the Flow Analyzer and the Kjeldahl Nitrogen Analyzer for Measuring Soil Total Nitrogen
- Keywords:
- continuous flow analyzer; Kjeldahl nitrogen analyzer; soil total nitrogen; soil texture; land use
- CLC:
- S151.9+5
- DOI:
- 10.13869/j.cnki.rswc.2023.01.030
- Abstract:
- Soil total nitrogen is an important indicator for research in soil science, plant nutriology, ecology, and environmental science, and its simple and rapid determination is important for understanding soil nitrogen supply capacity and fertility. In this study, we selected 64 soil samples under 3 typical land uses at 9 sites on the Loess Plateau and compared the results of the flow analyzer and Kjeldahl nitrogen analyzer for the determination of soil total nitrogen content to determine the feasibility of the flow analyzer for rapid determination of soil total nitrogen. The results show that there is no significant difference between the two analyzers in the determination of soil total nitrogen content, and the results of the flow analyzer are highly significant positive with the those of Kjeldahl method(p<0.000 1). Moreover, the determination of total nitrogen content by the flow analyzer is not affected by land uses and soil textures. Thus, the continuous flow analyzer can be used for rapid determination of total nitrogen content in different soil types and under different land management practices.
- References:
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Last Update:
2023-01-10