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.
2007
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Ronald Bjøru Gunn Elin FedreheimSammendrag
Being a farmer in Northern Norway is challenging in many ways. In the last 20 years a greater attention has been given on area conservation, also influencing the farmer in many ways. In order to reach IUCN"s goal of conserving 15 % of the land area in Norway, it is necessary to conserve also private property as national parks. Increasing the conservation of outfields affects property owners in many ways; the conservation regulations define which initiatives can be taken in an area, the use of the area for forestry might be regulated, the national park status might attract even more people. All of these factors are mentioned as considerations regarding area conservation in Norway. In this paper we will present some preliminary results from the project Protected Areas as Resources for Coastal and Rural Business Development (PROBUS). The research question in this paper will be the following: How can farmers continue their activities or create new activities in conserved areas in Northern Norway? Some of the themes addressed will then be the different incentives relevant for farming in conserved areas, formal regulations that regulate farming in conserved areas, the possibilities for supplementary activities related to tourism and outdoor activities, and the interplay between the possibilities and the limitations with farming in conserved areas.
Forfattere
Ronald BjøruSammendrag
Det er ikke registrert sammendrag
Forfattere
Eivind Vangdal Sigrid Flatland Stein Harald Hjeltnes Hege SivertsenSammendrag
Det vart gjennomført forbrukartestar med fire nye plommesortar. Forbrukarane syntest "Reeves" og "Jubileum" hadde finaste utsjånaden. Men smakspoenga for "Reeves" var låge. "Excalibur" fekk høge smakspoeng, sjølv om forbrukarane ikkje syntest plommene såge fine ut. Basert på kjemiske analysar av viktige kvalitetsfaktorar var det ikkje uventa at "Excalibur" fekk høge smakspoeng, og smakspoenga for "Jubileum" og "Victoria" var middels. "Avalon" fekk derimot høgare og "Reeves" lågare smakspoeng enn ein hadde venta. "Excalibur", Jubileum" og "Avalon" er minst like gode eller betre enn standardsorten "Victoria". Fruktkvaliteten hjå "Reeves" er dårlegare enn hjå "Victoria".
Sammendrag
The control of Alopecurus geniculatus, Poa annua and Poa trivialis using iodosulfuron (Hussar/Hussar OD) was investigated in field experiments in the seed harvest year in timothy (Phleum pratense), and in the sowing year and seed harvest year in smooth meadow-grass (Poa pratensis) and red fescue (Festuca rubra). Iodosulfuron (10 g a.i. ha-1) usually had good effect on Poa trivialis and Alopecurus geniculatus. As for Poa annua the effect on seed contamination was better than on weed coverage in the field. Early application improved weed control in the seed harvest years, and iodosulfuron was shown to perform well at low temperatures. The herbicide often delayed timothy development, but caused seed yield reduction only in two out of eight experiments, both with moist soil at treatment. The visual damage increased with increasing rates and use of additives (alcoholetoxylate or rape oil). A questionnaire investigation among timothy growers in 2004 showed that farmers using Hussar had 43% lower contamination of P. trivialis in cleaned seed yield and 20% lower yield than the farmers not using Hussar. In some trials in timothy and smooth meadow-grass, the new formulation Hussar OD gave slightly more damage than the old formulation Hussar. While well-established timothy crops seem to tolerate some visual damage without seed yield reduction, the risk of yield reduction in first year crops can usually be avoided by splitting the application into 5 g a.i. ha-1 at 14 days intervals. In smooth meadow-grass and red fescue established without cover crop, repeated applications of 5 g a.i. ha-1 in the sowing year resulted in better control of P. annua and significant seed yield improvements compared to application only in the seed harvest year. Both Hussar and Hussar OD have off-label approvals for members of the Norwegian Seed Growers Association.
Sammendrag
Forsøk med bekjemping av grasugras i frøavl av timotei, enggrapp og rødsvingel ble presentert som poster
Forfattere
Mikael Frisk Maud Göthe-Lundgren Kurt Jörnsten Mikael Rönnqvist Mikael RönnqvistSammendrag
Det er ikke registrert sammendrag
Forfattere
Mikael Rönnqvist Mikael Frisk Maud Göthe-Lundgren Kurt Jörnsten Mikael RönnqvistSammendrag
Det er ikke registrert sammendrag
Forfattere
Kari Bysveen Trygve S. Aamlid Svein Ø. SolbergSammendrag
During 2002-2005, Norwegian seed yields of meadow fescue (Festuca pratensis Huds.) were 52% lower in organic than in conventional seed production. The difference was most conspicuous in ley year 1, suggesting that seed crop establishment is a limiting factor in organic seed production. Meadow fescue is usually underseeded in a cover crop of spring wheat or spring barley, and many organic growers delay the underseeding until after harrowing for weed control. Our objectives were (1) to determine whether organic seed crops of meadow fescue should be underseeded in the same operation as, or immediately after, the cover crop (implying no harrowing for weed control); or if they should be underseeded in conjunction with, or just after, weed harrowing (on average nine days after the cover crop); and (2) to compare the establishment of meadow fescue seed crops without cover crop or in cover crops of spring barley, spring wheat, peas or green fodder (barley + peas). On average for all cover crops and four trials, first year"s seed yields of meadow fescue were 11 % lower for crops seeded after weed harrowing than for crop seeded immediately after the cover crop. Weed harrowing combined with delayed seeding also resulted in more scentless mayweed (Tripleurospérmum inodórum) and other weeds in ley year 1. Despite less plant-available nitrogen in spring, seed crops underseeded just after the cover crop were more lodged than crops underseeded after weed harrowing. On average for the two seeding dates, the highest seed yield were produced from crops seeded in pure stand and from crops that had been underseeded in green fodder and received an extra 30 kg N ha-1 in manure shortly after green fodder harvest in late July. The results suggest that seed crops of meadow fescue need ample supply of light, water and nutrients in August to produce a good seed yield in ley year 1.