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Apparent N Balance in Organic and Conventional Low Input Cropping Systems

Boldrini, Arianna; Benincasa, Paolo; Tosti, Giacomo; Tei, Francesco and Guiducci, Marcello (2007) Apparent N Balance in Organic and Conventional Low Input Cropping Systems. 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 determination of nutrient surplus is one of the indicators of potential N losses from the agricultural system to the environment. An experiment was started in 1998 in Central Italy to evaluate the soil surface N balance of an organic and a conventional low input cropping system over a long term crop rotation. Results at the end of a 6-year crop rotation showed an estimated N surplus in organic system 1.3-2 times higher than in conventional system while N content in the top soil was not different in the two systems, so that organic system should have involved a higher N loss from that soil layer.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:nitrogen surplus, nitrogen loss, crop rotation
Subjects: Farming Systems > Farm nutrient management
Research affiliation: International Conferences > 2007: 3rd QLIF Congress > 3 Crop production / soil management
Italy > Univ. Perugia
Deposited By: Boldrini, Dr Arianna
ID Code:9885
Deposited On:05 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Refereed:Not peer-reviewed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/
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