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
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Bart Vandecasteele Simon Craeye Kristof Gheysens Peter Melis Hanne Denaeghel Krzysztof Kusnierek Rianne Visser Dries VandammeSammendrag
Det er ikke registrert sammendrag
Forfattere
Liv Guri VelleSammendrag
An overview of the European Heathland Network, its history, purpose and role in connecting research, management and policy across Europe. The presentation also highlighted past workshops, current management challenges and priorities for strengthening the network in the future.
Forfattere
Linn Vassvik Anders Nielsen Michael P. D. Garratt Bjørn Arild Hatteland Joseph Chipperfield Jørund Johansen Silje Maria Midthjell Høydal Erik Trond AschehougSammendrag
Insect pollinators are important drivers of fruit quality and yield in horticultural systems. The global reduction in wild bee populations has increased the demand for managed honeybees, despite honeybees relatively low pollination efficiency. Here, we assessed how bee communities, bee behaviour, and orchard design in Norwegian apple orchards affects apple pollination success, an important determinant of apple quality. We placed pan and vane traps in 18 apple orchards, in six distinct locations, within the two main apple growing regions in Norway. We also tracked individual bees (honeybees, bumblebees, and solitary bees) throughout the apple flowering season, and recorded their flower handling time, number of flower visits, stigma contact, and movement between apple flowers. Finally, we calculated the seed set rate (ovules developed into seeds / total number of ovules) from 908 harvested apples to estimate pollination success. Our key finding is that pollination success was driven by the abundance of wild bees and overall orchard planting design. We found lower pollination success in block design orchards where a single cultivar is planted continuously over a large area, compared to orchards with an integrated design where compatible cultivars are planted within the orchard. We also found that stigma contact decreased as apple flowering progressed, and that solitary bees visited fewer flowers per foraging event but were potentially more thorough foragers. Our results highlight the importance of promoting wild bees in apple orchards while also ensuring there is compatible pollen in the orchards for optimal pollination.
Forfattere
Håvard SteinshamnSammendrag
Det er ikke registrert sammendrag
Forfattere
Ingunn Øvsthus T. Radovanović Vukajlović M. Martelanc G. Antalick L. Butinar A. Hermes B.T. Grein Mats Carlehög B. Mozetič VodopivecSammendrag
Det er ikke registrert sammendrag
Forfattere
Khaled Murad AghaSammendrag
NIBIO, avdeling Fôr og husdyr, har i samarbeid med Norsk landbruksrådgiving (NLR) testet norske sorter av engsvingel. Målet med serien var å studere overvintring og avling ved to eller tre slåtter, og registrere sjukdomsangrep i gjenveksten av godkjente engsvingelsorter under ulike dyrkingsforhold. Det er i dag 16 godkjente sorter, men få sorter er i salg. Forsøket var todelt: en serie med mest sørlig tilpassa sorter og en serie med mest nordlig tilpassa sorter, totalt ti sorter i hvert felt. Noen sorter var med i begge seriene. Sortene ble etablert i 50/50-blanding med den best tilpassa timoteisorten for lokaliteten. Totalt ni feltforsøk ble gjennomført, med fire med nordlig tilpassa sorter og fem med sørlig tilpassa fordelt på totalt åtte lokaliteter. Resultatene viste små forskjeller mellom sortene. Selv om enkelte sorter hadde høyere tørrstoffavling og fôrenhetsproduksjon, var forskjellene ikke statistisk signifikante. Fôrkvaliteten var også relativt lik mellom sortene, med mindre variasjon i råprotein, fiberfraksjon (NDF) og fordøyelighet. Registreringene av soppsykdommer var begrenset, og det ble ikke observert tydelige forskjeller i motstandsevne mellom sortene. På grunn av manglende signifikante forskjeller kan det ikke gis en konkret anbefaling om hvilke sorter som bør prioriteres.
Sammendrag
Greenhouse cultivation can help meet food demand in a growing and increasingly urbanised population. Reliance on fossil-fuel heating and natural ventilation often makes conventional greenhouses energy- and carbon-inefficient. Closed greenhouses address these limitations through resource recycling and energy recovery. While a centralised environmental control system (ECS) integrating climate control and heat harvesting has shown potential to improve greenhouse crop performance at high latitudes, its year-round energy use and energy-related carbon footprint reduction potential remains insufficiently quantified. This study extends an existing dynamic greenhouse climate model to incorporate a novel centralised ECS integrating air recirculation, heating, cooling, and heat harvesting in (semi-)closed greenhouses. The model was validated using experimental data from Norway, reproducing temperature and relative humidity with RMSEs of 1.40–1.63 °C and 7.60–8.55%, respectively. Energy use and tomato yield were predicted with relative errors of 3.8–8.4% and 1.6–4.2%, respectively. Scenario simulations under Norwegian conditions showed that (semi-)closed greenhouses with heat harvesting can reduce fossil fuel use by over 80% while increasing tomato yields by 15–41% relative to open greenhouses, driven by changes in CO2 concentration and temperature following reduced ventilation and heat recovery. The performance of a fully closed greenhouse relying solely on on-site cold storage is constrained by cooling capacity and buffer size, particularly during summer; adding a supplemental cold energy source such as surface water can improve its performance. Despite heat harvesting, a residual boiler heating demand of 3–10% remains. Further gains in energy efficiency and crop performance may be achieved through optimised climate control.
Forfattere
Lampros LamprinakisSammendrag
Det er ikke registrert sammendrag