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.
2026
Sammendrag
Kurs i nytte- og skadeinsekt for fruktdyrkere på Lofthus, Innvik, Foss gård og Ryfylke
Sammendrag
Electrical Resistivity Tomography (ERT) is widely used to characterize subsurface structures and to monitor dynamic processes through time-lapse measurements. Its multiscale applicability has enabled laboratory investigations of solute and gas transport in rocks and sediments, as well as field-scale imaging of landfill interiors based on contrasts in moisture content and waste composition. Landfill gas production, primarily CO₂ and CH₄ generated by organic waste degradation, remains difficult to monitor using ERT due to the highly heterogeneous and dynamic nature of waste bodies. To address this challenge, we built a small-scale cylindrical laboratory column, equipped with 64 electrodes to systematically investigate the sensitivity of ERT to gas presence and migration in waste. The experimental setup allows independent control of key parameters including waste grain size, chemistry, saturation, gas volume, flow velocity, and gas composition. This contribution presents the first stage of the project, focusing on the design, optimization, and validation of the ERT column. Using a combination of forward modeling and preliminary laboratory measurements, we assess the system’s spatial resolution, sensitivity distribution, and error sources related to both data acquisition and inversion. The results highlight the importance of pre-optimizing laboratory ERT configurations and provide practical guidelines for the design of similar experimental systems, a step that is often only briefly documented in previous studies.
Forfattere
Till SeehusenSammendrag
I 2025 ble Teknologidagen ved NIBIO Apelsvoll arrangert for femte gang. Det som startet som en møteplass for teknologiinteresserte bønder, forskere og næringsaktører, har på få år blitt en viktig arena for kunnskapsdeling og demonstrasjon av ny landbruksteknologi i Norge. Teknologidagen samler bønder, rådgivere, maskinleverandører, myndigheter, studenter og forskere rundt et felles mål: å finne nye løsninger for framtidas matproduksjon. Gjennom disse fem årene har arrangementet vist hvordan teknologi kan bidra til økt lønnsomhet, bedre ressursutnyttelse og reduserte miljø- og klimaavtrykk. Samtidig har det vært en påminnelse om at teknologi alene ikke løser utfordringene i landbruket. Det er kombinasjonen av agronomisk kunnskap, praktisk erfaring og nye verktøy som skaper resultater på jordet.
Forfattere
Nina Trandem Gunnhild Jaastad Eve Grosjean Gaute Myren Ingrid Rimeslåtten Østensen Sigrid Flatland Iren Lunde SekseSammendrag
Det er ikke registrert sammendrag
Forfattere
Marjana Westergren Kathrin Streit Marcela van Loo Ricardo Alía Santiago C. González-Martínez Marta Benito-Garzón Francisco J. Lario Leza José M. Climent Maldonado Georgeta Mihai Tor MykingSammendrag
Abstract Key message Maintaining forest resilience under climate change depends on understanding genetic adaptation and preserving diversity. Long-term common garden networks are essential for revealing how species and populations perform across life stages and environments. When strategically designed and deployed across diverse sites, including suboptimal ones, these networks provide critical empirical insights into adaptive capacity of forest tree species under future climate conditions.
Sammendrag
The codling moth (Tortricidae: Cydia pomonella) is a common pest in fruit orchards all over the world that is known to have developed resistance against a variety of pesticides. With a rising concern over the negative effects from pesticides, nations like Norway have implemented integrated pest management (IPM) in their national strategy to lower pesticide use. IPM highlights semi-natural habitats (SNH) as key elements in conservation biological control, as they provide essential resources for natural enemies. The codling moth has life stages on the orchard floor where it may be exposed to ground dwelling predators such as carabid beetles (Coleoptera: Carabidae). While the role of carabids as predators in cereal field is well known, their contributions to biocontrol in fruit orchards remain understudied. The aim of this study was to explore how SNH influence ground dwelling predator communities in apple orchards and its possible impacts for biocontrol of the codling moth. By using pitfall traps, this study explored how carabid communities varied across a distance gradient from SNH to within orchards in three apple orchards in Eastern Norway, throughout one growth season. The study yielded 55 carabid species (n=949), of which three species made up around 59% of all specimens. Preliminary results suggest that communities further from the SNH are more abundant but less functional diverse. Fully detailed results will be presented during the conference.
Sammendrag
Slugs represent one of the main pests for vegetable farmers. In Norway, the invasive Spanish slug, Arion vulgaris, is especially damaging and is listed as a severe threat on the Norwegian list of alien species. In small-scale, diversified horticultural systems, like market gardens and allotment gardens, pest problems may be exacerbated because of organic cultivation methods with limited use of conventional pest management. On the other hand, small-scale horticultural systems may foster greater local biodiversity through their diversified growing practices and limited pest management, and are often situated in areas more favourable to biodiversity compared to intensive, monocultural farmlands. Greater local biodiversity, in turn, might provide improved pest control by natural enemies. Carabid beetles are natural enemies of slugs, and earlier studies have shown that some species feed on eggs and juveniles of the Spanish slug. However, for many carabid beetles, it is unclear if, and to what extent, the Spanish slug, and other common slug pests, are preyed upon. In this project, we aim to: 1) quantify the abundance and species richness of carabid beetles in Norwegian market gardens and allotment gardens, 2) correlate carabid abundance and richness with slug abundance in market gardens, and 3) use molecular methods to establish whether common carabid species found in Norwegian smallscale horticultural systems contain slug DNA in their gut.
Sammendrag
With an approximate production of 1.5 million tons annually, Norway remains as the world’s biggest producer of Atlantic salmon. Marine aquaculture sludge constitutes a major side stream from the aquaculture sector, which represents nutrients loss as well as a contributing factor to eutrophication of the ocean. Despite its elevated salt and sulphur concentrations, the high energy density of marine aquaculture sludge indicates its suitability as a substrate for biogas production. The microbial community driving anaerobic digestion represents a complex mixture of symbiotic relationships between bacteria and methanogenic archaea. Here, we investigate the microbial dynamics as well as reactor performance of two lab-scale reactors running solely on marine aquaculture sludge, from which we achieved continuous biogas production from reactors running on 100% marine aquaculture sludge. Hydraulic retention time was decreased from 20 to 4 days to determine the reactor’s maximum tolerable organic loading rate. Performance measurements, such as gas production and acid composition, pH and buffer capacity was observed. Initial microbial community analysis through 16S rRNA gene amplicon sequencing revealed a low diversity, yet specialized halotolerant microbial community during anaerobic digestion of marine aquaculture sludge. To broaden this knowledge, we employed a metagenome-centric metaproteomic approach, aiming to further elucidate the relationship between reactor performance measurements and changes in microbial community structure and activity in biogas reactors running on marine aquaculture sludge when subjected to reduced hydraulic retention time. Overall, our study aims to assess both the opportunities and limitations of using marine aquaculture sludge as a substrate for biogas production.
Forfattere
Lars Olav BrandsæterSammendrag
Nytt prosjekt om kontroll av høymole
Sammendrag
Det er ikke registrert sammendrag