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Nährstoffgehalte ökologischer Wirtschaftsdünger

Paulsen, Hans Marten; Kratz, Sylvia and Schnug, Ewald (2011) Nährstoffgehalte ökologischer Wirtschaftsdünger. [Nutrient contents of organic livestock manure.] Poster at: 11. Wissenschaftstagung Ökologischer Landbau, Gießen, 16.-18. März 2011.

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Summary

Manure samples from 194 farms with organic livestock production were analysed for their macro- and micronutrient contents. Guidance values for N, P, K, Mg and S concen¬trations given for conventional systems are within the range of values ¬determined here for organic farms. However, they can only be used for first estimations in fertilization planning, since – as demonstrated by the presented data – nutrient contents may vary over a wide range. This was also the case for the micronutrient concentrations (B, Cu, Zn, Mn, Mo and Se). Fertilization with 1t/ha dry matter of ma¬nure with higher micronutrient concentrations can cover the demand of organically produced crops in nutrient balances. Micronutrients applied with fertilizers or in feed additives are seen to be important external sources in organic farm balances. So besides the influence of pedogenic effects on nutrient feedstuff concentrations, additional nutrient contents in livestock manure of organic farms are highly dependent on the individual farm management. Therefore, nutrients in animal manures need to be determined on farm level for a serious planning of their distribution.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:Macronutrients, micronutrients, livestock manure, organic farming
Subjects:"Organics" in general
Crop husbandry > Composting and manuring
Research affiliation: Germany
Germany > Federal Research Institute for Rural Areas, Forestry and Fisheries - VTI > Institute of Organic Farming - OEL
International Conferences > 2011: Scientific Conference on Organic Agriculture
Related Links:http://www.wissenschaftstagung.de/, http://www.verlag-koester.de/buch.php?id=735&suche=11.%20wissenschaftstagung&fb_id=s
Deposited By: Paulsen, Dr. Hans Marten
ID Code:17404
Deposited On:17 Jun 2011 14:19
Last Modified:17 Jun 2011 14:19
Document Language:German - Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsbandes der 11. Wissenschaftstagung erschienen.
Leithold, G.; Becker, K.; Brock, C.; Fischinger, S.; Spiegel, A.-K.; Spory, K.; Wilbois, K.-P. und Williges, U. (Hrsg.) (2011):
Es geht ums Ganze: Forschen im Dialog von Wissenschaft und Praxis
Beiträge zur 11. Wissenschaftstagung Ökologischer Landbau, Justus-Liebig-Universität Gießen, 15.-18. März 2011
Band 1: Boden, Pflanze, Umwelt, Lebensmittel und Produktqualität
Band 2: Tierproduktion, Sozioökonomie
Verlag Dr. Köster, Berlin.
Der Tagungsband kann über den Verlag Dr. Köster bezogen werden; siehe: http://verlag-koester.de/buch.php?id=735&fb_id=37

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