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Sustainable nutrient supply of organic farming challenged by specialisation

Hansen, Sissel; A. Bleken, Marina; Løes, Anne-Kristin; Govasmark, Espen; Falk Øgaard, Anne and Breland, Tor Arvid (2007) Sustainable nutrient supply of organic farming challenged by specialisation. In: Lund, Mogens and Larsen, Torben Ulf (Eds.) NJF Report: NJF 23rd Congress 2007 - Trends and Perspectives in Agriculture, Nordic Association of Agricultural Scientists, 3 (2), NJF Report, no. 3 (2), pp. 193-194.

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Online at: http://www.njf2007.dk/theme/t10/2_1_S_Hansen.pdf

Summary

Diverse production on each farm, with livestock density well balanced with crop production, has been the traditional way to maintain the soil fertility in organic farming systems. However, there is a trend of specialisation into stockless arable or livestock farms. Stockless farming is challenged by depletion of soil mineral reserves and soil organic matter, risk of large nutrient losses after green manuring, and dependence on nutrient supply from external sources. In this paper, we focus on these challenges to sustained soil fertility.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:sustainability, nutrient depletion, green manure, organic farming systems
Subjects: Environmental aspects
"Organics" in general
Farming Systems > Farm nutrient management
Research affiliation: Sweden > Nordic Association of Agricultural Scientists NJF
Norway > Bioforsk - Norwegian Institute for Agriculture and Environmental Research > Bioforsk Organic Food and Farming Division
Deposited By: Hansen, Sissel
ID Code:11956
Deposited On:01 Nov 2007
Last Modified:12 Apr 2010 07:36
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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