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Nutrient Budgets And Their Implication On Soil Fertility In Organic Farming Across Europe

Reimer, Marie; Hartmann, Tobias; Oelofse, Myles; Bünemann, Else K.; Müller-Stöver, Dorette; Magid, Jakob and Möller, Kurt (2021) Nutrient Budgets And Their Implication On Soil Fertility In Organic Farming Across Europe. Paper at: Organic World Congress 2021, Science Forum: 6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB, Rennes, France, 8 - 10 September, 2021. [Completed]

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Summary

Knowledge of nutrient budgets of organic farms and their effect on soil nutrient contents across Europe is relatively limited. Therefore, a meta-analysis was conducted to investigate the nutrient supply of organic farms as affected by budgeting method, farm type and studied country. Further, an assessment was performed relating nutrient budgets with soil nutrient contents across five countries. We found an average surplus of N, an almost balanced budget for P and a deficit for K. Yet, nutrient budgets varied over a wide range. Farm type, more than the studied country or budgeting method, was able to explain some of the variations, with vegetable farms having higher surpluses, especially for N, than dairy farms, followed by mixed or stockless farms. Soil nutrient contents showed also considerable differences among farms and countries. A relationship between soil nutrient content and budget was found only for P, which indicates negative P budgets as a real risk for soil P depletion.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Europe, meta-analysis, nutrient management, soil depletion, soil nutrients, Sustainability
Subjects: Crop husbandry
Soil
Research affiliation: Denmark
Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil > Nutrient management
Germany
International Conferences > 2021: Organic World Congress, Science Forum: 6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB > Transitioning towards organic and sustainable food system
Deposited By: rey, m. frederic
ID Code:42280
Deposited On:07 Sep 2021 13:12
Last Modified:13 Sep 2021 12:10
Document Language:English
Status:Unpublished
Refereed:Peer-reviewed and accepted
Additional Publishing Information:A book of abstracts of papers of the Science Forum at the Organic World Congress 2021, September 8-10, Online and on-site in Rennes, France '6th ISOFAR Conference co-organised with INRA, FiBL, Agroecology Europe, TP Organics and ITAB' has been published

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