A semiautomated procedure for total nitrogen in plant and soil samples

Gallaher, R.N. and Weldon, C.O. and Boswell, F.C. (1976) A semiautomated procedure for total nitrogen in plant and soil samples. Soil Science Society of America Journal, 40 (6). pp. 887-889.

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This study evaluated inexpensive alternatives for the determination of total N in plant and soil samples. Plant and soil samples which varied widely in N concentration were digested in a 126-sample-capacity Al block digester followed by determination of total N with the ammonium electrode in a semiautomated reaction vessel assembly. The proposed Ammonium electrode semiautomated (AES) procedure was compared to standard micro-Kjeldahl and aluminum block digested-steam distilled-titrated (ABDDT) procedures. Thirty to 50 more samples could be analyzed per 8-hour day with the proposed semiautomated procedure as compared to standard micro-Kjeldahl methods. The precision of the methods were comparable but significantly more N was found by using the ABDDT procedure

Item Type: Article
Author Affiliation: Associate Professor of Agronomy, Department of Agronomy University of Florida, Gainesville, FL 32611
Subjects: Soil Science and Microbiology > Soil Sciences
Divisions: Sorghum
Depositing User: Ms K Syamalamba
Date Deposited: 24 Sep 2012 06:04
Last Modified: 24 Sep 2012 06:07
Official URL: https://www.soils.org/publications/sssaj/abstracts...
URI: http://eprints.icrisat.ac.in/id/eprint/8050

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