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Auswirkungen einer Schwefeldüngung auf den Ertrag und die Nährstoffzusammensetzung eines Kleegrasbestandes

Böhm, Herwart (2013) Auswirkungen einer Schwefeldüngung auf den Ertrag und die Nährstoffzusammensetzung eines Kleegrasbestandes. Paper at: 12. Wissenschaftstagung Ökologischer Landbau, Bonn, 5.-8. März 2013.

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Summary

In a field experiment at the Experimental Farm for Organic Farming in Northern Germany, the effect of sulphur application in the form of MgSO4 to a red clover-grass mixture was measured in the year 2011. At the beginning of the vegetation period in the spring plots were fertilised with 30 and 60 kg S ha-1. The sulphur fertilisation resulted in significantly higher fresh weight and dry matter yields and otherwise in a lower dry matter content as compared to an unfertilised treatment. The content of crude protein and sulphur were significantly increased by sulphur application. The N/S-ratios in the fertilised plots showed values below the threshold of 15 for an adequate supply of sulphur. The N-withdrawals added up over the three cuts increased in the fertilised plots by over 55 %. S-withdrawals increased from 8 kg S ha-1 in the unfertilised plots by more than 10 kg S ha-1. In the comparison of the 30 and 60 kg S ha-1 fertilisation level there was no significant effect on yield level, but on N/S-ratio and N uptake. Therefore, a sulphur fertilisation level of 30 kg ha-1 can be considered sufficient.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Kleegras, Rotklee, Düngung, Schwefel, Ertrag, Qualität
Subjects: Crop husbandry > Composting and manuring
Crop husbandry
Research affiliation: Germany > Federal Research Institute for Rural Areas, Forestry and Fisheries - VTI
Germany > Federal Research Institute for Rural Areas, Forestry and Fisheries - VTI > Institute of Organic Farming - OEL
International Conferences > 2013: Scientific Conference Organic Agriculture > Plant & soil
Related Links:http://orgprints.org/view/project/int-conf-wita-2013.html
Deposited By: Böhm, Dr. Herwart
ID Code:21493
Deposited On:09 Sep 2013 12:34
Last Modified:11 Jan 2016 12:53
Document Language:German/Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 12. Wissenschaftstagung Ökologischer Landbau erschienen.
D.Neuhoff,C.Stumm,S.Ziegler,G.Rahmann,U.Hamm& U.Köpke (Hrsg.)(2013):Ideal und Wirklichkeit - Perspektiven Ökologischer Landbewirtschaftung. Beiträge zur 12. Wissenschaftstagung Ökologischer Landbau, Bonn, 5.- 8. März 2013 Verlag Dr. Köster, Berlin.
Der Tagungsband kann über den Verlag Dr. Köster bezogen werden.
Archiviert unter: http://orgprints.org/view/project/int-conf-wita-2013.html

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