Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2024
Sammendrag
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Sammendrag
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Forfattere
Kirsten Tørresen Eldrid Lein Molteberg Camilla Bye Øystein Skagestad Stine Lysen Amund Løken Kjetil Mostue Borghild GlorvigenSammendrag
Det er ikke registrert sammendrag
Forfattere
Kirsten Tørresen Eldrid Lein Molteberg Øystein Skagestad Camilla Bye Stine Lysen Amund Løken Kjetil Mostue Borghild GlorvigenSammendrag
Det er ikke registrert sammendrag
Sammendrag
Climate change with fluctuations in weather patterns, environmental concerns, and increased costs of mineral fertilizers all demand adjustment of nitrogen (N) used for forage production. The aim of the study was to investigate the effects of splitting N application in spring on dry-matter (DM) yield, crude protein (CP) content and protein quality of timothy-meadow fescue leys. The trial was conducted during two years at three locations (Kvithamar and Særheim, Norway and Länghem, Sweden). Split N application with 60 kg N ha–1 at onset of grass growth in April and 50 kg N ha–1 in May resulted in the same DM yields and CP concentrations as a single application of 110 kg N ha–1 in April in Kvithamar the first year and Særheim both years. In Länghem both years and for Kvithamar in the second year, a late application two weeks before first cut gave less DM yield than the single full application in April. Split application did not affect the contents of nonprotein N or nitrate.
Forfattere
Christian PedersenSammendrag
Det er ikke registrert sammendrag
Forfattere
Sigridur Dalmannsdottir Marit Jørgensen Helga Amdahl Kristoffer Herland Hellton Odd Arne RognliSammendrag
Norway stretches from latitude 58° to 71° north. Thus, the climate is very different in the south compared to the north. Since seed production in the north is unpredictable due to the short growing season, commercial seed production of perennial forage grass cultivars has been located in the south-eastern part of Norway. We tested freezing and ice-encasement tolerances of three seed lots of different age of each of the northern-adapted cultivars ‘Engmo’ and ‘Noreng’. The seed lots were prebasic (original), intermediate (mid), and current commercial (late). The results showed that both cultivars had reduced freezing tolerance when comparing plants from the original seed lots with plants from the current commercial seed lots, which originate from several generations of seed multiplication in the south. Regarding tolerance toward ice-encasement, there were no significant differences between seed lots or cultivars. This indicates phenotypic and genetic shifts within the cultivars towards less frost-tolerant populations. It is therefore important to implement seed production regimes of northern-adapted cultivars that reduce the risk of shifts and preserve the cultivar characteristics.
Sammendrag
This study investigates cow behaviour when visiting two GreenFeed Emission Monitoring (GEM) units within a Part-Time Grazing (PTG) system. Two separate PTG systems were assessed in Sweden and Norway, involving Nordic Red and Norwegian Red dairy cows, respectively. In Sweden, 24 cows were allocated to treatments with restricted access to pasture, either daytime or nighttime grazing. Meanwhile, the Norwegian PTG involved 33 cows with free pasture access, categorized by varying training levels (Partially or Fully). In both PTG systems, cows were exposed to GEM units positioned indoors (Indoor) and in the grazing pastures (Pasture), with individual visitations recorded. Significant variations in visitation patterns were observed. In the restricted access PTG, Nighttime grazing access cows exhibited reduced visits to the Indoor GEM unit but increased visits to the Pasture GEM unit compared to Daytime grazing. Conversely, within the free access PTG, fully trained cows demonstrated elevated visits to the pasture GEM unit and total visits compared to their partially trained counterparts. These findings highlight the influence of temporal conditions and training levels on cow-visiting behaviour within PTG systems.
Sammendrag
Grasslands serve specific purposes in different regions and in various ways, and their ecological and economic importance can vary depending on the specific type of grassland and the region in question. Grasslands can be highly multifunctional on a local-scale and across scales through various interactions of management and site conditions. The present study spans from the northern Arctic region, over central and eastern to the southern Mediterranean parts of Europe. It gives an overview of the diversity of grassland systems, in terms of management types and grassland products, as a starting point to present use cases of specific roles typical for distinct regions. It then discusses roles and adaptation possibilities under the conditions of prospected climate change in chosen regions.
Sammendrag
The EU’s Farm to Fork strategy aims to create fair, healthy, and environmentally friendly food systems, ensuring universal access to sufficient, safe, nutritious, and sustainable food. Increasing the production and consumption of organic food is considered crucial to achieving these objectives. This study explores the development of organic food in four selected Nordic countries: Denmark, Finland, Norway, and Sweden. We have observed the variance in the market share of organic products in the retail sector among these countries, with 13, 2.5, 1.73 and 8.9%, respectively (2021 statistics). This highlights a significant gap, with Denmark and Sweden leading in organic food consumption. We seek to understand the reasons behind this disparity by delving into public policies governing organic food strategies in the selected countries. The analysis entails examining multiple policy documents to pinpoint fundamental strategies and significant milestones influencing the development of the organic sector. Our findings indicate that Denmark and Sweden have historically implemented supportive policies, including financial incentives, subsidies, and regulatory frameworks, to promote organic agriculture. Their consistent, credible, comprehensive and coherent governmental policies and long-term commitments offer a stable environment for the organic sector to flourish. They seem to possess extensive distribution networks and better market access for organic products, contributing to the sector’s growth. The accessibility and availability of organic products in retail outlets play a vital role in influencing consumer choices. The paper provides policymakers with valuable insights into how to foster the consumption and production of organic food, not only within the case studies but also in other national contexts.