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
Forfattere
Ingunn Øvsthus Mitja Martelanc Mats Carlehög Benedikt Tobias Grein Branka Mozetic Vodopivec Melita Sternad Lemut Guillaume Antalick Tatjana Rodovanovic VukajlovicSammendrag
Det er ikke registrert sammendrag
Forfattere
Tomasz Leszek WoznickiSammendrag
Presentation about growing media
Forfattere
Tomasz Leszek WoznickiSammendrag
Det er ikke registrert sammendrag
Sammendrag
Fruit quality is a major determinant of commercial success in raspberry cultivars. Yet the established ways of measuring quality: chromatography and trained sensory panels, are slow, costly and, for sensory work, variable. Raman spectroscopy is a rapid, reagent-free alternative based directly on molecular vibrations, and is now available in handheld form. Nine raspberry cultivars and two breeding selections were grown in an open polytunnel at NIBIO Apelsvoll, Norway, in 2023, and berries were sampled early and a late in the harvest season. Spectra were recorded with an 830 nm handheld instrument from intact berries and from pressed, centrifuged juice and related to HPLC analyses and sensory panel taste scores. Empirical multivariate models based on partial least squares regression, applied to pre-processed spectra of raspberry juice samples, showed promising potential for estimating total sugars (R2cv = 0.96, RMSECV = 3.4 g L-1), the sugar/acid ratio (R2cv = 0.96) and citric acid (R2cv = 0.94), and moderate potential for the sensory taste score (R2cv = 0.55 on a 1-9 scale). Regression coefficients and VIP scores placed the models on sugar bands near 1065, 1085 and 1128 cm-1 and on citrate bands near 940 and 1720 cm-1, matching published assignments. A calibration-free two-band ratio, I(1115-1145)/I(925-960), tracked the sugar/acid ratio almost as well as the full model (r = 0.945). Measurements of intact berries could not be used for estimating any property (R2cv <= 0.36); the relative standard error of the sugar band was 7.0-9.3% per scan against 1.9% for juice, identifying drupelet heterogeneity rather than absent signal as the obstacle. Handheld Raman spectroscopy shows promising potential as a rapid screening tool for extracted raspberry juice, however for measurement of the intact fruit further method development is needed.
Forfattere
Håvard Rønningen GraarudSammendrag
Foredraget omhandlet bruk av plantevernmiddelet Turex, forutsetninger for å lykkes med Turex, utfordringene ved bruk av turex og økonomiske beregninger ved bruk av Turex.
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.