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Quantifizierung des Stickstoffs in Wurzeln und Wurzelausscheidungen von Soja

Schweiger, Peter; Hofer, Michaela; Vollmann, Johann and Wanek, Wolfgang (2013) Quantifizierung des Stickstoffs in Wurzeln und Wurzelausscheidungen von Soja. Paper at: 12. Wissenschaftstagung Ökologischer Landbau, Rheinische Friedrich-Wilhelms-Universität, Bonn, 5. bis 8. März 2013.

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Summary

The below ground N allocation of organic soybean was examined in two experiments conducted in Eastern Austria. During early development, individual soybean plants were labelled with a 15N-enriched urea solution by the petiole-feeding method. The 15N enrichment of these plants and surrounding soil relative to their natural 15N abundance was determined at plant maturity. The proportion of soil N derived from roots was calculated from root and soil N isotope data. Total below ground plant N, including rhizodeposits, amounted to between 6 to 48 % of total plant N. The proportion of total plant N allocated below ground was inversely related to shoot N content.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Sojabohne, Stickstoffverteilung, unterirdisch.
Subjects:"Organics" in general
Crop husbandry
Research affiliation: International Conferences > 2013: Scientific Conference Organic Agriculture > Plant & soil
Related Links:http://www.wissenschaftstagung.de/, https://www.verlag-koester.de/index.php?id=114&tx_fbmagento
Deposited By: Schweiger, Dr. Peter
ID Code:21376
Deposited On:09 Sep 2013 12:29
Last Modified:11 Nov 2013 18:20
Document Language:German/Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 12. Wissenschaftstagung erschienen.
Dr. D. Neuhoff, C. Stumm, S. Ziegler u.a. (Hrsg.)
Beiträge zur 12. Wissenschaftstagung Ökologischer Landbau
Ideal und Wirklichkeit: Perspektiven ökologischer Landbewirtschaftung
Erscheinungsjahr: 2013
ISBN-13: 9783895748158
Verlag Dr. Köster, Berlin

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