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.
2004
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Reidun PommerescheSammendrag
Surface-active spiders were sampled from a ley and two adjacent field margins on a dairy farm in western Norway, using pitfall traps from April to June 2001. Altogether, 1153 specimens, representing 33 species, were found. In total, 10 species were found in the ley, 16 species in the edge of the ley, 22 species in the field margin "ley/forest" and 16 species in the field margin "ley/stream". Erigone atra, Bathyphantes gracilis, Savignia frontata and Collinsia inerrans were the most abundant species in the ley. C. inerrans was not found in the field margins. This species is previously recorded only a few times in Norway. Diplocephalus latifrons, Tapinocyba insecta, Dicymbium tibiale, Bathyphantes nigrinus and Diplostyla concolor were most abundant in the field margin "ley/ forest". D. latifrons, D. tibiale and Pardosa amentata were most abundant in the field margin "ley/ stream", followed by E. atra and B. gracilis. The present results were compared to results from ley and pasture on another farm in the region, recorded in 2000. A Detrended Correspondence Analyses (DCA) of the data sets showed that the spider fauna from the leys were more similar, independent of location, than the fauna in ley and field margins on the same locality. The interactions between cultivated fields and field margins according to spider species composition, dominance pattern and habitat preferences are discussed.
Forfattere
Annette Folkedal Schjøll Christian BrevigSammendrag
In Norway, a web-based warning system called VIPS has been developed under a national government funded programme for reduced risk of pesticides used in agriculture. VIPS is a collaboration project between the Norwegian Crop Research Institute, Plant Protection Centre and the Norwegian Agricultural Extension Service. The aim of VIPS is to give open access to all the information needed for farmers to reduce their reliance on pesticides. VIPS calculates warnings for more than 70 weather stations for several pests and diseases in selected fruits, vegetables and cereals. Registered users may adjust the climatic data used in the models and register field observations to get private warnings and use the system to record farm-practices. VIPS is unique in several aspects: " A general user-interface for all crops and all pests and diseases; the user gets a quick overview of which pests to look out for. " Warnings are site specific and linked to an authorized weather station which supplies validated meteorological data. The extension service supplies the validated biological data necessary to run the models. " The presentation is layered under the weather stations of each county. First level gives information of danger (red), possible danger (yellow) and no danger (green) for each model (past five days/coming five days). The next 3 levels give information of the specific model, historical data and exact values of the input parameters used in the models for the calculations.
Forfattere
Ingerd Skow Hofgaard Birgitte Henriksen Åshild Ergon Hilde Kolstad Yalew Tarkegne Helge Skinnes Anne Marte TronsmoSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Maja Cuvardic Steinar Tveitnes Tore Krogstad Peder LombnæsSammendrag
Det er ikke registrert sammendrag
Forfattere
Dag RøenSammendrag
Rubinstep" og "Rubinola" har synt seg lovande i førstprøving ved Bioforsk Njøs. Vi har no fleire nye sortar frå dei tsjekkiske foredlingsprogramma under utprøving.
Sammendrag
Innenn helse- og sosialsektoren er det i dag et stort udekket behov når det gjelder tilbud til mennesker med spesielle behov for integrering i arbeidslivet. Fylkesmannens helseavdeling i Nord-Trøndelag har grunn til å tro at det finnes et stort ubenyttet potensial innen ulike typer tilrettelagte tilbud fra landbruket. Ved å koble skjøtsel av verneområder med Grønn Omsorg vil man kunne bygge videre på de gode erfaringene man har fra lignende tiltak. For å oppnå en vinn-vinn situasjon med fornøyde brukere og et velholdt kulturlandskap er det en forutsetning med god planlegging og oppfølging både fra helsefaglig hold og fra kulturlandskapsforskere.
Forfattere
Michel VerheulSammendrag
The Norwegian government aims that ten percent of the total agricultural area must be grown ecologically by 2010. A further goal is that ecologically grown vegetables should cover 15 % of the market. In spite of earlier efforts, the production and sale of ecological vegetables is still on a very low level. Successful production of organic greenhouse vegetables requires a good knowledge of both organic principles and effective greenhouse production. In order to increase the marketable yield, agronomical problems concerning the transition from conventional to organic greenhouse production should be solved. The main challenge in this sense is the proper use of organic growing media and fertilisers. In 2003, Planteforsk Særheim Research Centre started a trial to develop a growing concept for ecologically grown greenhouse tomatoes following the standards set up by the Norwegian Food Safety Authority and controlled by "Debio". In order to avoid problems with soil borne pests and diseases and to reduce the risk of losses of plant nutrients, plants were grown in limited beds. This system gave good results in earlier experiments in Sweden (Gäredal and Lundegårdh, 1998) and might quicken the transition from conventional to ecologic production. Growing media used in the trail were peat, a mixture of peat and bark or a mixture of soil and straw with a volume of 25 or 75 litres per m2. Some of the treatments received a basic fertiliser, consisting of composted chicken or pig manure, while other treatments received no basic fertiliser. In order to meet the nutritional requirements of the plants, organic fertiliser was given regularly during the growing season. A solution of organic nutrients using drip irrigation or the coarse fraction of cattle manure applied three times a week was used. In a control treatment, plants were grown on peat bags with a volume of 25 litres per m2 and fertilised with conventional mineral nutrition. Tomato transplants were planted in week 10 and harvested until week 44. Input and output of nutrients were recorded. Results showed great differences in marketable yield between the different treatments. Plants grown in peat with a volume of 25 litres and only given a solution of organic nutrients gave a low yield (26 kg/m2) and problems with blossom end rot (33 %). Low volume hampered a proper supply of organic fertilisers. Plants grown on 75 litres of a mixture of peat and bark or a mixture of soil and straw, including compost and fertilised with cattle manure, gave a yield of 39 and 37 kg/m2 respectively. Control plants yielded 39 kg/m2. This shows that a normal yield can be achieved using organic growing media and fertilisers. In 2004 the growing concept will be further developed. It is also planned to develop a growing system for organic cucumber and lettuce production.