Ebbesvik, M. and Løes, A.-K. (2013) Long-term changes in soil nutrients and grass/clover yields on Tingvoll farm. In: Løes, Anne-Kristin; Askegaard, Margrethe; Langer, Vibeke; Partanen, Kirsi; Pehme, Sirli; Rasmussen, Ilse A.; Salomon, Eva; Sørensen, Peter; Ullvén, Karin and Wivstad, Maria (Eds.) Organic farming systems as a driver for change, NJF Report, no. 9 (3), pp. 119-120.
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Document available online at: http://www.njf.nu/filebank/files/20130827$203251$fil$4F15WCXLGK9vjP9XUSjP.pdf
Summary
Long term studies (1989-2012) of soil nutrients and ley yields on a Norwegian organic dairy farm (Tingvoll experimental farm) showed that soil nutrient concentrations decreased over time after conversion. A potential decline in yields due to reduced nutrient concentrations will be difficult to detect, because of large annual variations in yield levels. The sustainability of the nutrient management on the farm should be considered, aiming at keeping soil nutrient concentrations above levels impacting negatively on the yields.
| EPrint Type: | Conference paper, poster, etc. |
|---|---|
| Type of presentation: | Paper |
| Agrovoc keywords: | Language Value URI English Dairy farms http://aims.fao.org/aos/agrovoc/c_34762 English Leys http://aims.fao.org/aos/agrovoc/c_16189 English Nutrient management http://aims.fao.org/aos/agrovoc/c_330697 English Crop yield http://aims.fao.org/aos/agrovoc/c_10176 English Soil properties http://aims.fao.org/aos/agrovoc/c_330883 |
| Subjects: | Animal husbandry > Production systems > Dairy cattle Crop husbandry > Production systems > Pasture and forage crops Farming Systems > Farm nutrient management |
| Research affiliation: | International Conferences > 2013: NJF Seminar 461 - Organic farming systems as a driver for change |
| ISSN: | 1653-2015 |
| Deposited By: | Sørensen, Peter |
| ID Code: | 24551 |
| Deposited On: | 06 Nov 2013 21:48 |
| Last Modified: | 06 Nov 2013 21:48 |
| Document Language: | English |
| Status: | Published |
| Refereed: | Peer-reviewed and accepted |
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