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Improvement of nutrient efficiency and energy use in grassland farms on marginal lands

Type de document
conferencePaper
Langue source
Anglais
Titre français
Titre anglais
Improvement of nutrient efficiency and energy use in grassland farms on marginal lands
Auteur(s)
  • ELSAESSER M.
  • HUMMLER T.
  • DENTLER J.
  • KIEFER L.
  • BAHRS E.
Editeur(s)
Autre(s)
Id
XRBS4QCK
Version
2785
Url zotero
https://www.zotero.org/groups/2567444/items/XRBS4QCK
Date ajout
15 janvier 2021 10:06
Date modification
19 janvier 2021 11:24
Résumé anglais
designated Nature 2000 areas, in scattered fruit tree orchards and on steep slopes in mountainous areas. Dairy farms as main users of grassland in such areas are diminishing. This study is part of an EIP project, the main objective of which was to identify factors that could improve the economic benefits and environmental sustainability in dairy farming. Therefore, the nutrient status and energy use of 15 grassland farms in such areas were investigated over a 3-year period (2014-2017). Nitrogen efficiency varied between 17 and 51%, whereas on unproductive land the value was even lower. Mean phosphorus efficiency was 110%, with the highest value on an organic farm being 242%. Such high values of P-efficiency lead to future soil infertility if P is not replaced. Global energy efficiency was on average 1.2 and varied between 0.3 and 2.1. Three out of 15 farms had a positive energy balance. Increases in N-efficiency, conserving C storage in soils and reduction of livestock are possible solutions to improve the sustainability of dairy farms on marginal lands.
Note
None
CRAW tags
  • AB - Modalité bio
  • FREDO adaptation aux changements globaux
  • FREDO biologie et travail du sol
  • FREDO durabilité
  • FREDO performance énergétique
  • GEO Allemagne
  • azote
  • dairy farming
  • efficiency
  • energy
  • grassland
  • marginal land
  • phosphorus
WEB tags
Pages
807
Date caractères
10/2020
Date publication
1 octobre 2020