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
Phosphorus is a critical resource for agriculture, but standard soil tests often fail to measure the dynamic rate at which it becomes available to crops, often leading farmers to overuse fertilizer and increase pollution risks. While the advanced diffusive gradients in thin films technology is excellent at measuring this dynamic phosphorus supply in soil, it is expensive and labor-intensive. We set out to discover if a combination of common, low-cost analyses could predict how much phosphorus plants absorb just as effectively as the advanced technology. Our research confirmed that the advanced dynamic phosphorus measurement was the single best predictor of plant phosphorus uptake. However, our key finding was that combining three simple measurements: extractable phosphorus, extractable aluminum, and soil organic carbon, predicted plant uptake and crop yield with equal or slightly better accuracy. This proves that agricultural stakeholders can use these existing, affordable labor
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
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.
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.
Forfattere
Erlend Hustad Honningdalsnes Erik Stensrud Marstein Helge Bonesmo Dag Lindholm Jonathan Rizzi Heine Nygard RiiseSammendrag
Det er ikke registrert sammendrag
Forfattere
Helge BonesmoSammendrag
Det er ikke registrert sammendrag
Forfattere
Ingrid Flatland Sigridur Dalmannsdottir Randi Berland Frøseth Bjørn Arild Hatteland Birgitte Henriksen Mats Höglind Annbjørg Kristoffersen Eldrid Lein Molteberg Till Seehusen Hilde Haug Simonhjell Anita Sønsteby Pia Heltoft Thomsen Ingunn M. Vågen Wendy Marie Waalen Ingunn Øvsthus Arne BardalenSammendrag
Dette notatet gir en oppdatering av kunnskapsgrunnlaget og relevans for klimatilpasning for de mest sentrale planteproduksjonene, dvs. korn, grovfor, grønnsaker og potet, frukt og bær. Notatet tar utgangspunkt i teksten i ulike fagnotater fra 2016, og oppdaterer beskrivelsene med oppdatert kunnskap relevant for de ulike produksjonene. Økt gjennomsnittstemperatur, økt CO2-konsentrasjon i atmosfæren og en lengre vekstsesong er fordeler som vil kunne utnyttes. På den annen side vil økt nedbør og mer ekstremvær i fremtiden bli utfordringer som må håndteres. Notatet peker på både utfordringer, muligheter og kunnskapsbehov for å lykkes i klimatilpasningsarbeidet.