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.
2016
Authors
Annette Dathe Attila Nemes Matthew Patterson Daniel Gimenez Johannes Koestel Mingming Qin Helen French Esther Bloem Perrine Fernandez Nicholas JarvisAbstract
No abstract has been registered
Authors
Matthew Patterson Daniel Gimenez Attila Nemes Annette Dathe Helen French Esther Bloem Johannes Koestel Nicholas JarvisAbstract
No abstract has been registered
Authors
Matthew Patterson Daniel Gimenez Attila Nemes Annette Dathe Helen French Esther Bloem Johannes Koestel Nicholas JarvisAbstract
No abstract has been registered
Authors
Attila Nemes Annette Dathe Matthew Patterson Daniel Gimenez Johannes Koestel Esther Bloem Nicholas Jarvis Helen FrenchAbstract
No abstract has been registered
Authors
Attila Nemes Matthew Patterson Annette Dathe Daniel Gimenez Johannes Koestel Mingming Qin Helen French Esther Bloem Perrine Fernandez Nicholas JarvisAbstract
No abstract has been registered
Authors
Annette Dathe Attila Nemes Matthew Patterson Daniel Gimenez Johannes Koestel Arslan Ahmad Helen French Esther Bloem Maryia Babko Nicholas JarvisAbstract
No abstract has been registered
Abstract
Nutrients for food production are traditionally extracted from natural resources, most importantly as nitrogen from the air, and phosphorous from limited mineral resources. They can also be recovered and recycled from human waste products. There is generally a low P status in the world’s soils, while Norwegian soils are rich in phosphorous. Most recyclable P is in human and animal waste products as wastewater and manure, but also municipal solid waste and more recently, organic waste contain a considerable amount of P that ideally can be utilized.
Abstract
No abstract has been registered
Abstract
Biochar and its properties can be significantly altered according to how it is produced, and this has ramifications towards how biochar behaves once added to soil. We produced biochars from corncob and miscanthus straw via different methods (slow pyrolysis, hydrothermal and flash carbonization) and temperatures to assess how carbon cycling and soil microbial communities were affected. Mineralization of biochar, its parent feedstock, and native soil organic matter were monitored using 13C natural abundance during a 1-year lab incubation. Bacterial and fungal community compositions were studied using T-RFLP and ARISA, respectively. We found that persistent biochar-C with a half-life 60 times higher than the parent feedstock can be achieved at pyrolysis temperatures of as low as 370 °C, with no further gains to be made at higher temperatures. Biochar re-applied to soil previously incubated with our highest temperature biochar mineralized faster than when applied to unamended soil. Positive priming of native SOC was observed for all amendments but subsided by the end of the incubation. Fungal and bacterial community composition of the soil-biochar mixture changed increasingly with the application of biochars produced at higher temperatures as compared to unamended soil. Those changes were significantly (P < 0.005) related to biochar properties (mainly pH and O/C) and thus were correlated to pyrolysis temperature. In conclusion, our results suggest that biochar produced at temperatures as low as 370 °C can be utilized to sequester C in soil for more than 100 years while having less impact on soil microbial activities than high-temperature biochars.
Authors
Paul Eric Aspholm Bjørn Frantzen Tor-Arne Bjørn Hallvard Jensen Lars Ola Nilsson Eva Narten HøbergAbstract
No abstract has been registered