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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.

2011

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Sammendrag

For å undersøke langtidsvirkning av ensidig grovfôrproduksjon ved langvarig eng i ulikt omløp, ble det anlagt feltforsøk på tre steder; Særheim (1968), Fureneset (1974) og Svanhovd (1969). Målet var å sammenligne ulike driftssystemer (beiting/slått og langvarig eng/eng i omløp) med hensyn til avling, kvalitet, botanisk sammensetning og jordtilstand. Forsøkene har vært gjennomført helt fram til i dag. Et utvalg har vurdert hvordan det foreliggende datamateriale kan publiseres, og om forsøksserien bør videreføres. Utvalget har estimert ressursbehovet for avsluttende publisering og for nødvendige tilleggsundersøkelser.

Sammendrag

Glen Ample is the main raspberry cultivar in Norway. This cultivar is very susceptible to the raspberry leaf and bud mite Phyllocoptes gracilis, and serious damage on both leaves and fruits are common. The only documented control measure available has been fenpyroximate (Ortus/ Danitron), a substance that can only be used once per growing season, which is not sufficient to keep P. gracilis below damaging population levels. Nor can it be used by organic growers. In a search for alternative control measures we conducted trials with rapeseed oil (emulsified with soft soap) and sulphur (Thiovit Jet) in heavily infested fields. The effect was measured by assessing leaf damage and counting mites overwintering in the buds. The results imply that post harvest spraying with vegetable oils or sulphur targeting overwintering females in the buds is a very valuable component of a management strategy for the leaf and bud mite in ‘Glen Ample’.

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Sammendrag

The objective of the study was to assess the influence of wood properties on copper leaching from wood treated with preservatives. Scots pine (Pinus sylvestris L.) trees were harvested from two different stands in Norway and one in Denmark. Sapwood was cut to samples (20 x 20 x 50 mm) in as many layers as the radial size allowed. Within this material, it is possible to trace the individual sample to its original position in the stem. Approximately half of the samples were treated with Wolmanit CX-8 and half with Tanalith. All samples were conditioned, impregnated with preservatives and leached according to EN84. Copper and boron content in water samples was determined by an ICP (Inductively Coupled Plasma) technique. The variation in leachability within trees, between trees and between different stands was studied. Statistical analyses showed that trees from the south are more prone to leaching and that samples from the lowest part of the tree fixate less preservative than those from the upper parts. In addition, drying method of the sample had an influence and differences were also noted between products used in the study.

Sammendrag

Denne artikkelen diskuterer mulighetene for bruk av LED lamper som vekstlys i veksthusproduksjonen.