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.
2012
Authors
Erik J. JonerAbstract
No abstract has been registered
Authors
Erik J. JonerAbstract
No abstract has been registered
Authors
Erik J. JonerAbstract
No abstract has been registered
Authors
Erik J. JonerAbstract
No abstract has been registered
Abstract
No abstract has been registered
Authors
Anne Falk ØgaardAbstract
No abstract has been registered
Abstract
N-rich waste resources have potentially good effects if applied as fertiliser to spring cereals. P fertilisation effects of meat and bone meal are strongly determined by soil pH, whereas P in bottom wood ash seems to have almost the same availability as easily soluble P in mineral fertilisers. K fertilisation effects were hidden by the soils ability to provide plants with plant available K.
Abstract
No abstract has been registered
Abstract
No abstract has been registered
2011
Abstract
Abstract Due to difficulties in tracing engineered nanoparticles (ENPs) in complex media, there are few data on the exposure of soil biota to ENPs. This study used neutron activated cobalt (Co NPs) and silver (Ag NPs) nanoparticles, as well as soluble cobalt and silver salts, to assess the uptake, excretion and biodistribution in the earthworm Eisenia fetida. Concentrations of cobalt in worms after four weeks exposure reached 88% and 69% of the Co ions and Co NPs concentrations in food, respectively, while corresponding values for Ag ions and Ag NPs were 2.3% and 0.4%. Both Ag ions and Ag NPs in earthworms were excreted rapidly, while only 32% of the cobalt accumulated from Co ions and Co NPs were excreted within four months. High accumulation of cobalt was found in blood and in the digestive tract. Metal characterization in the exposure medium was assessed by sequential extraction and ultrafiltration. The Co NPs showed significant dissolution and release of ions, while Ag ions and particularly Ag NPs were more inert.