Publications
NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.
1988
Authors
Torild Wickstrøm W. Lund R. ByeAbstract
Iron(III) can minimize the serious interference from copper(II) and nickel(II) on the determination of tellurium by hydride generation/atomic absorption spectrometry. The optimal concentrations were found to be 1 g/l and 2 g/l Fe(III) in 4.0 mol/l HCl in presence of nickel(II) and copper(II), repectively. The signals were only 25% lower in a solution og 1.6 g/l Ni(II) than for a nickel-free solution. For copper(II), reasonable sensitivity was retained in the presence of 100 mg/l Cu(II).
Authors
Tore SkrøppaAbstract
No abstract has been registered
Authors
Erik Christiansen Alf BakkeAbstract
No abstract has been registered
Abstract
No abstract has been registered
– Variations in ground water level at the field station Nordmoen, Romerike
Kristian Bjor, Magne Huse
Authors
Kristian Bjor Magne HuseAbstract
No abstract has been registered
Authors
Tor MykingAbstract
No abstract has been registered
1987
Authors
Ø. Austarå Fred MidtgaardAbstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Bjørn Langerud Martin SandvikAbstract
Effects of growth medium physical conditions were studied. Peat and two series of peat mixed with hydrophobic mineral wool or perlite in three mixing ratios were prepared. Growth media porosities were characterized by the standardized time method and seedling development by measurements of stem length and fresh and dry weight.Seedlings grown in media containing mineral wool showed less mortality, were larger and had more living root apices than seedlings in media lacking mineral wool. Growth media influenced most the stem length and dry weights and was best at higher porosity. The difference between mineral wool and perlite amendments was greater for dry weight than stem length, although the effect of mixing ratio was observed for mineral wool only.The media induced qualitative differences in shoots (foliage spiralling) and roots (branching, number of living root apices, lenticel intumescence).
Authors
Jon Dietrichson Halvor SolheimAbstract
No abstract has been registered