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.
2009
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Tor MykingSammendrag
Det er ikke registrert sammendrag
Sammendrag
Control of dock species are a true bottleneck in the development of grassland based organic forage production in Norway. Rumex obtusifolius, Rumex crispus and Rumex longifolius are among the most important perennial weeds in grassland areas throughout the world. These dock- species are undesired in grasslands because they decrease yields and reduce forage feeding value. The experiment in our study is carried out as a full-factorial design, including key-factors, which may influence dock behaviour significantly. The first factor, (i) date of grassland establishment, may be important for preventing /decreasing the flush of seedlings from seeds as well as shoots from root fragments. The purpose of the second factor, (ii) black fallow, is both false seedbed preparation and decreasing food reserves in underground plant parts. The third factor, (iii) is the use of equipment for cutting the taproot either (a) before ploughing by using a tractor propelled rotovator, or (b) cutting the dock taproot in the same operation as ploughing by using a prototype ¿two layer dockplough¿. The biological background for cutting the taproot before ploughing is that many studies have shown that new shoots only come from the 5 upper cm of the taproot. Furthermore, our hypothesis is that shoots from highly fragmented regenerative parts (the neck) of the taproot placed deep will not reach the soil surface before their reserves are depleted. Experiments were carried out at 3 and 4 locations in 2007 and 2008, respectively. Weed development were assessed as number of emerging seedlings as well as number of sprouting plants from root fragments, both in the year when the treatments were carried out and the following year. The results are yet not completely analyzed, but preliminary results indicate that plants from seeds frequently are more numerous than plants from roots. At least at some locations and years both the use of rotovator and the ¿dock plough¿, has reduced the number of plants from root fragments with approx. 50%. However, our experiments have shown that ¿dock plough¿ prototype has to be improved, especially because it did not cut the taproot near the open furrow, and did not bury the green parts well enough.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Anne B. NilsenSammendrag
Norsk institutt for skog og landskap har laget heldekkende arealdekkekart for Norge. Dette inngår i det europeiske kartprogrammet CORINE Land Cover (CLC). CLC er et arealressurskart på europeisk nivå. Det er oversiktskart med minsteareal på 25 hektar og dermed ikke egnet for detaljplanlegging. Datasettene er fritt tilgjengelig og kan lastes ned fra EEAs og Skog og landskaps nettsider.
Forfattere
Agnar KvalbeinSammendrag
Presentasjonen ga en inndeling av næringsstoffer med tanke på fotosyntese og plantekvalitet. Det ble gitt en anbefaling av standard gjødselbalanding for hyppig gjødsling av golfgreener. Forhodlet mellom bladvekst og plantekvalitet, definert som rotvekst og innhold av karbohydrater, styres av tilgangen på nitrogen. Optimal gjødsling ivaretar denne balansen. Praktiske råd for hvordan gjødsling kan tilpasses vekstfaktorene temperatur og lys.
Forfattere
Asbjørn Moen Asbjørn MoenSammendrag
Det er ikke registrert sammendrag
Sammendrag
Presentation of reseach with the aim of predicting the risk of downy mildew epidemics as part of a DSS to determine when prophylactic fungicides should be initialized
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Presentation of reserach with the aim of predicting the risk of downy mildew epidemics as part of a DSS to determine when prophylactic fungicides should be initialized