V
Vegard Martinsen
Researcher at Norwegian University of Life Sciences
Publications - 49
Citations - 2694
Vegard Martinsen is an academic researcher from Norwegian University of Life Sciences. The author has contributed to research in topics: Biochar & Grazing. The author has an hindex of 23, co-authored 42 publications receiving 2011 citations. Previous affiliations of Vegard Martinsen include Norwegian Geotechnical Institute.
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Journal ArticleDOI
The sorption and desorption of phosphate-P, ammonium-N and nitrate-N in cacao shell and corn cob biochars.
Sarah E. Hale,Vanja Alling,Vegard Martinsen,Jan Mulder,Gijs D. Breedveld,Gijs D. Breedveld,Gerard Cornelissen,Gerard Cornelissen,Gerard Cornelissen +8 more
TL;DR: The sorption of PO4-P, NH4-N and NO3-N to cacao shell and corn cob biochars produced at 300-350°C was quantified and it is speculated that NH4 -N could bind via an electrostatic exchange with other cationic species on the surface of the biochar.
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In situ effects of biochar on aggregation, water retention and porosity in light-textured tropical soils
Alfred Obia,Jan Mulder,Vegard Martinsen,Gerard Cornelissen,Gerard Cornelissen,Gerard Cornelissen,Trond Børresen +6 more
TL;DR: In this article, the effect of Biochar particle sizes on soil aggregate stability, bulk density, water retention, and pore size distribution in two experiments in Zambia was investigated.
Journal ArticleDOI
Biochar Effect on Maize Yield and Soil Characteristics in Five Conservation Farming Sites in Zambia
Gerard Cornelissen,Vegard Martinsen,Victor Shitumbanuma,Vanja Alling,Gijs D. Breedveld,David W. Rutherford,Magnus Sparrevik,Sarah E. Hale,Alfred Obia,Jan Mulder +9 more
TL;DR: In this article, the use of a low dosage biochar combined with conservation farming (CF) minimum tillage was tested as a way to increase crop yields, where 10%-12% of the land was tilled.
Journal ArticleDOI
Biochar amendment increases maize root surface areas and branching: a shovelomics study in Zambia
Samuel Abiven,Andreas Hund,Vegard Martinsen,Gerard Cornelissen,Gerard Cornelissen,Gerard Cornelissen +5 more
TL;DR: Biochar amendment resulted in more developed root systems and larger yields, and may have contributed to the observed yield increases, e.g., by improving immobile nutrients uptake in soils that are unfertile or in areas with prolonged dry spells.
Journal ArticleDOI
Biochar improves maize growth by alleviation of nutrient stress in a moderately acidic low-input Nepalese soil
Naba Raj Pandit,Jan Mulder,Sarah E. Hale,Vegard Martinsen,Hans-Peter Schmidt,Gerard Cornelissen,Gerard Cornelissen +6 more
TL;DR: The alleviation of nutrient stress was the probably the main factor contributing to the increased maize biomass production upon biochar addition to this moderately acidic Inceptisol.