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.
2019
Sammendrag
At the Norwegian Institute of Bioeconomy Research (NIBIO, formerly Bioforsk), biochar has been a topic of research since 2009 through both laboratory and field studies. Initial results demonstrated that biochar produced from clean biomass is safe to use on agricultural soils, and that pyrolysis temperatures of ≥370 °C are necessary for producing biochar that is resistant to decomposition on a timescale of 100 years. Further work identified the chemical transformations that are responsible for biochar stability and contributed to finding the best indicator of this stability. Throughout the years, we have had close collaboration with industry and farmers in Norway, where now industrial networks are in action and there is financial support for the implementation of biochar technology. Despite the convincing benefits of biochar as a climate mitigation solution, it has only slowly advanced beyond the research stage, notably because its effect on yield are too modest. There is therefore a need for win-win biochar solutions benefiting both food production and climate mitigation. Such a solution is the development of biochar fertilizers, which capitalizes on the capacity of biochar to capture and release nutrients. As biochar properties largely depend on pyrolysis conditions and feedstock properties, our current work contributes to the selective design of biochars for the purpose of improving nutrient use efficiency.
Sammendrag
Nordland fagskole utvikler utdanning innen bærekraftige matopplevelser, på bakgrunn av erfaringer fra studietilbud Mat og matkultur ved Høgskolen i Nesna/Bioforsk (2005-2014). Prosjektgruppa inviterer fagskoler med relaterte fag til samarbeid. Fagskolen i Hordaland, Trondheim fagskole, Nordland reiselivsfagskole og Fagskolen Innlandet ønsker å utfylle hverandre slik at bransjene får et samlet utdanningstilbud med god faglig bredde og dybde.
2017
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Intensive sweet cherry production in tunnel covered orchard systems offer an advantage of reducing rain-induced fruit cracking. In May 2005 four Haygrove multibay tunnel systems were installed on a gentle slope at the experimental farm at Bioforsk Ullensvang, western Norway. In these tunnels, feathered 1-year-old sweet cherry ‘Sweetheart’/Colt trees were planted with two rows at a spacing of 2×4 m in each tunnel. Each tunnel was split into two halves and covered from the end of April to beginning of September with one of two different plastic covers, having different light spectral transmittance; Luminance THB film (absorbing infrared light) and traditional Visqueen clear UV polythene film. Climatic parameters were monitored inside and outside the tunnels from the beginning of May to the beginning of September each year and yield data and fruit quality parameters were recorded. In 2009, from May 7 to September 16 the average temperature measured outside the tunnels was 14.3°C. Temperatures exceed 25°C only on two days. Temperatures inside the tunnels were 0.3°C higher on average during the entire season but exceeded 30°C on the same two hot days. Temperatures under the Luminance film were slightly lower compared to the clear film and especially reduced the temperature build up on sunny days. The harvest period was the second half of August. Average yield tree-1 was 8.8 kg (11 t ha-1) in the fourth leaf and 18.8 kg (23.5 t ha-1) fifth leaf. There were no yield differences between the two different films. Fruit size measurements found that 80% of the fruits were larger than 30 mm in diameter in the fourth leaf and 51% in the fifth leaf. Total soluble solid content was generally high (17-18%) and no significant differences were found between the different films.
2015
Forfattere
Marit JørgensenSammendrag
Det er ikke registrert sammendrag
Forfattere
Sølvi WehnSammendrag
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Forfattere
Rose BergslidSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Sølvi WehnSammendrag
This paper reports on the performance of the red-listed Primula scandinavica, endemic to Scandinavia. The study took place in Jotunheimen, Norway. We evaluated occurrence, density and sexual reproduction variables (number of fertile individuals and number of seed capsules). Habitats were registered as land-cover categories (historical and current; broad habitat types) and habitat patch classes (semi-natural and natural; fine-grained habitat types). Spatial overlay analyses and maximum likelihood tests of generalized linear mixed models (GLMMs) were performed to assess the habitat quality of the land-cover categories and the habitat patch classes. In most (96%) of the observed occurrences the species was located at a site that had open vegetation 40 years ago but is now becoming forested or covered by shrubs. The highest densities of P. scandinavica were found in “heathland” and “grassland in transition into woodland”, while the potential for sexual reproduction was highest in “grassland” and lowest in “grassland in transition into woodland”. The results indicate that many of the populations in the study area are remnants and that the habitats of highest quality are semi-natural habitat patches. The changed land use practices in mountain areas have resulted and will result in fewer and smaller populations. However, as also climatic conditions will change it is not straightforward to predict the future performance of P. scandinavica.
Forfattere
Ranjan Roy Chan Ngai Weng Stefanos XenariosSammendrag
Det er ikke registrert sammendrag