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Organische Substanz in ökologisch bewirtschafteten Böden,Quantität, Qualität und ihr Einfluss auf Getreideerträge

Schmidt, Harald; Schüler, Christian and Jörgensen, Rainer Georg (2007) Organische Substanz in ökologisch bewirtschafteten Böden,Quantität, Qualität und ihr Einfluss auf Getreideerträge. [Organic matter in organic managed soils quantity, quality and the effect on cereal yields.] Paper at: Zwischen Tradition und Globalisierung - 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Stuttgart, Deutschland, 20.-23.03.2007.

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Summary

In an on-farm investigation a total of 39 fields of 9 organic managed farms (main crop winter cereals) were sampled in the years 2005 and 2006. Several soil variables were evaluated as well as crop yield, weather data and the field history. Results of statistical analyses (mean, range, standard deviation, correlation and multiple linear regression) are presented. Comparable to physical and chemical variables certain fields were also characterised by soil biological variables. Main factors of cereal N-yield were pre crop, crop rotation, soil type and soil organic matter content (SOM). Soil biological variables had only a low influence. Nitrogen availability was affected by physical and biological soil factors, the weather and management measures as straw fertilization and pre crop. Negative correlations between SOM and yield or N-availability were probably caused by the connection of SOM and environmental factors.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Bodenfruchtbarkeit, Bodenbiologie, Pflanzenbau, Pflanzenernährung
Subjects: Soil > Soil quality > Soil biology
Crop husbandry
Research affiliation: International Conferences > 2007: Scientific Conference on Organic Agriculture > 1 Plant and Soil > 1.5 Plant nutrition, soil fertility, fertilizers, farm yard manure
Deposited By: Schmidt, Dr Harald
ID Code:9581
Deposited On:07 May 2007
Last Modified:12 Apr 2010 07:34
Document Language:German - Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Die endgültige Version des Beitrags ist veröffentlicht in:
S. Zikeli, W. Claupein, S. Dabbert, B. Kaufmann, T. Müller und A. Valle Zárate, Hrsg. (2007)
Zwischen Tradition und Globalisierung – 9. Wissenschaftstagung Ökologischer Landbau, Universität Hohenheim, Deutschland, 20.-23. März 2007, http://orgprints.org/10742/

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