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Nitrogenous substances in potato (Solanum tuberosum L.) tubers produced under organic and conventional crop management

Diviš, Jiří; Bárta, Jan and Heřmanová, Veronika (2007) Nitrogenous substances in potato (Solanum tuberosum L.) tubers produced under organic and conventional crop management. Poster at: 3rd QLIF Congress: Improving Sustainability in Organic and Low Input Food Production Systems, University of Hohenheim, Germany, March 20-23, 2007.

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Summary

The contribution presents data on crude protein and protein, free amino acid and nitrate contents in potato tubers produced under different crop management – conventional and organic. Field trials were carried out with five potato cultivars on two sites of different altitude in 2005. Mean content of crude protein was significantly higher in tubers from organic crop management than in tubers from conventional system (10.92 and 9.76 % in dry matter, respectively). Similar result was observed in protein content (5.44 and 5.09 % in dry matter, respectively). Cultivar was the factor having the highest direct effect on crude protein as well as protein contents. Tubers from conventional crop management showed an increased tendency to accumulate nitrates.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:potatoes, proteins, nitrates, ecological growing
Subjects: Crop husbandry > Production systems > Root crops
Research affiliation: International Conferences > 2007: 3rd QLIF Congress > 3 Crop production / soil management
Deposited By: Bárta, Ing., Ph.D. Jan
ID Code:10073
Deposited On:07 Mar 2007
Last Modified:12 Apr 2010 07:34
Document Language:English
Status:Published
Refereed:Not peer-reviewed
Additional Publishing Information: The final version of this paper is published in:
Niggli, Urs; Leifert, Carlo; Alföldi, Thomas; Lück, Lorna and Willer, Helga, Eds. (2007) Improving Sustainability in Organic and Low Input Food Production Systems. Proceedings of the 3rd International Congress of the European Integrated Project Quality Low Input Food (QLIF). University of Hohenheim, Germany, March 20 – 23, 2007. Research Institute of Organic Agriculture FiBL, CH-Frick.http://orgprints.org/10417/
Printed copies may be ordered from the FiBL Shop at www.shop.fibl.org.

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