Akert, Franziska; Zeller, Katharina; Widmer, Daniel; Uebersax, Annelies; Reidy, Beat (30 June 2022). Effectivity of measures on dairy farms to improve nitrogen balance and nitrogen use efficiency In: Delaby, L.; Baumont, R.; Brocard, V.; Lemauviel-Lavenant, S.; Plantureux, S.; Vertès, F.; Peyraud, J. L. (eds.) Grassland at the heart of circular and sustainable food systems: Proceedings of the 29th General Meeting of the European Grassland Federation. Grassland Science in Europe: Vol. 27 (pp. 524-526). European Grassland Federation (EGF)
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The aim of this study is to evaluate the effects of measures taken on dairy farms to reduce nitrogen (N) losses in the framework of a national initiative improving agricultural N use efficiency (NUE). Farm gate N balances were assessed to determine the N surplus and the NUE of 11 dairy farms (6 specialized with >65% grassland of total agricultural land and 5 mixed with >40% arable land of total agricultural land). The farmgate N balances were assessed in 2019 and 2020 and compared to the baseline (2015 to 2017) in order to evaluate the effects of the measures taken on the farms. Individual measures were taken on each farm to reduce the N surplus and to increase the NUE. On all farms N input via concentrates was reduced and manure composition was analysed to improve fertilisation. Additional measures consisted of the optimisation of animal management, manure application and crop rotation. The mean N surplus was reduced from 146 to 106 kg N/ha and NUE increased from 44 to 53% on average in the years where measures were taken. These results show an improvement regarding N surplus when measures were taken and indicate a general potential for improvement in N use on dairy farms.
Item Type: |
Conference or Workshop Item (Paper) |
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Division/Institute: |
School of Agricultural, Forest and Food Sciences HAFL School of Agricultural, Forest and Food Sciences HAFL > Agriculture School of Agricultural, Forest and Food Sciences HAFL > Agriculture > Grasslands and Ruminant Production Systems |
Name: |
Akert, Franziska 0000-0002-2571-2499; Zeller, Katharina; Widmer, Daniel; Uebersax, Annelies; Reidy, Beat 0000-0002-8619-0209; Delaby, L.; Baumont, R.; Brocard, V.; Lemauviel-Lavenant, S.; Plantureux, S.; Vertès, F. and Peyraud, J. L. |
Subjects: |
S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture S Agriculture > SF Animal culture |
ISBN: |
978-2-7380-1445-0 |
Series: |
Grassland Science in Europe |
Publisher: |
European Grassland Federation (EGF) |
Language: |
English |
Submitter: |
Franziska Akert |
Date Deposited: |
10 Jul 2023 13:45 |
Last Modified: |
30 Oct 2023 11:22 |
Related URLs: |
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Additional Information: |
Die Erlaubnis, diese PDF-Datei im ARBOR-Repository zu veröffentlichen, wurde eingeholt |
Uncontrolled Keywords: |
Nitrogen, dairy, farmgate balance, grassland, measures |
ARBOR DOI: |
10.24451/arbor.19562 |
URI: |
https://arbor.bfh.ch/id/eprint/19562 |
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