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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.

2012

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Sammendrag

Rapporten tar for seg 20 landbrukstiltak i 9 små nedbørfelt med verdifulle kalksjøer på Hadeland. Berggrunnsgeologi er dominert av kalkrike bergarter. Kalksjøene har kransalgevegetasjon og er verdifulle for biologisk mangfold. I tillegg er det med et nedbørfelt øst for Vigga (Elgsjøen). Landbruksdriften er dominert av kornproduksjon og en del grasdyrking og hestebeiter. Sammenlignet med leirjordsområder er det lite hydrotekniske problemer. 5 av tiltakene er knyttet til gjødselhåndtering og gjødsellager. 2 av tiltakene er knyttet til beitetråkkskader og foringsrutiner. 4 av tiltakene er vegetasjonssoner og 5 av tiltakene er fangdammer. De relativt høye P-AL tallene bør reduseres. Om mulig bør husdyrgjødselen spres utenfor nedbørfeltene til kransalgesjøene. Dette krever samarbeid mellom bønder om spredeareal, men vil kunne være et svært viktig tiltak for de sårbare sjøene.

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Sammendrag

Working paper 2012-1 presents the outcome of the project “Miljø- og klimaanalyse for norsk landbruk og matsektor” (Analysis of Environmental and Climate-related aspects of Norwegian agri-food sector). The project has been led by NILF in cooperation with MiSA and John Hille. The objective has been to develop methodological guidelines for comprehensive assessments of measures aimed at relieving environmental and climatic stresses from Norwegian food production and consumption.

Sammendrag

Bilberry (Vaccinium myrtillus L.), also called European blueberry, is native to Norway and strongly preferred by the Norwegian food industry due to its genuine flavour and high content of phytochemicals. However, Norwegian natural resources are underexploited, and only few investigation have focused on quality aspects of bilberries from wild populations with regard to potential cultivation and industrial utilization. Important goals of the 4-years study were to investigate (a) Berry quality parameters, (b) Fertilization effects, and (c) Geographic and seasonal variation in trial locations at regions in Southern, Mid and Northern Norway. Berry quality assessment included parameters such as total anthocyanins (ACY) and phenols (TPH), antioxidant capacity (AOX), pH, titratable acidity (TAC) and soluble solids (SS). Based on multivariate statistics (PCA), regional segregation patterns could be observed which were strongly overlapped by year-to-year variation. Within-seasonal variation of parameters were recorded for berries harvested at different time points throughout the season (Southern location/ Hedmark), but between-seasonal effects were generally stronger. Similar year-to-year effects were also found in bilberries from Northern Norway (Bardu), but not in berries harvested from the field in Mid Norway/Langvatnet. The field in Northern Norway was treated with organic fertilizer (compost and wood chippings), while the field in Mid Norway was fertilized with mineral fertilizer combinations (N+P). Application of organic fertilizer did not have any clear effect on berry quality, while mineral fertilizer resulted in clear segregation patterns of berry samples after three years of treatment, thus minimizing year-to year variation. Mean values of quality parameters ACY, TPH and AOX, measured at the different locations (all years and treatments) varied between 330-427 mg/100 g f.w., 531-640 mg/100 g f.w., and 5-8 mmol/100 g f.w., respectively, thus underscoring the phytochemical value of bilberries from Norwegian populations.