Blar i Brage NMBU på forfatter "Mulder, Jan"
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Impact of biochar on soil physical characteristics and greenhouse gas emissions
Obia, Alfred (PhD Thesis;2015:100, Doctoral thesis, 2015)Climate change and production of adequate amounts of food to feed the growing human population are key challenges facing the modern world. These two challenges often involve a trade-off between solving the one, while ... -
In Situ 15N labeling Experiment reveals different long-term responses to ammonium and nitrate inputs in N-saturated subtropical forest
Liu, Wenjing; Yu, Longfei; Zhang, Ting; Kang, Ronghua; Zhu, Jing; Mulder, Jan; Huang, Yongmei; Duan, Lei (Peer reviewed; Journal article, 2017) -
Long-Term Increase in Aboveground Carbon Stocks Following Exclusion of Grazers and Forest Establishment in an Alpine Ecosystem
Speed, James David Mervyn; Martinsen, Vegard; Mysterud, Atle; Mulder, Jan; Holand, Øystein; Austrheim, Gunnar (Journal article; Peer reviewed, 2014) -
Multi-year double cropping biochar field trials in Nepal: Finding the optimal biochar dose through agronomic trials and cost-benefit analysis
Pandit, Naba Raj; Mulder, Jan; Hale, Sarah; Zimmermann, Andrew R.; Pandit, Bishnu Hari; Cornelissen, Gerard (Journal article; Peer reviewed, 2018)Poor water and nutrient retention are the major soil fertility limitations in the low productivity agricultural soils of Nepal. The addition of biochar to these soils is one way these hindrances can be overcome. In the ... -
Nitrogen turnover and N2O emissions as a function of edaphic and hydrological conditions in subtropical forests of South China
Yu, Longfei (PhD Thesis;2016:81, Doctoral thesis, 2017-07-12)Forests in the Chinese subtropics receive large amounts of nitrogen (N) from the atmosphere, both as ammonium (NH4 +) and nitrate (NO3 -). Many of these forests are considered to be “N-saturated”, i.e. are not able to ... -
Nutrient effect of various composting methods with and without biochar on soil fertility and maize growth
Pandit, Naba Raj; Schmidt, Hans Peter; Mulder, Jan; Hale, Sarah; Husson, Olivier; Cornelissen, Gerard (Journal article; Peer reviewed, 2019)This work showed for the first time that organic nutrient transformation techniques based on locally available materials (manure, green waste and advanced biochar) can increase fertilizing efficiency of the resulting ... -
Phosphorus addition mitigates N2O and CH4 emissions in N-saturated subtropical forest, SW China
Yu, Longfei; Wang, Yihao; Zhang, Xiaoshan; Dörsch, Peter; Mulder, Jan (Journal article; Peer reviewed, 2017) -
Phosphorus Availability and Uptake following a Maize-Pigeon Pea Rotation under Conservation Agriculture
Phiri, Mirriam; Mulder, Jan; Chishala, Benson H.; Chabala, Lydia M.; Martinsen, Vegard (Peer reviewed; Journal article, 2024) -
The quality of Cocoa Pod Husk Biochar produced with the “Kon-tiki” kiln technology, and its effect as a soil enhancer on the growth rate of cocoa seedlings
Quansah, Ernestina (Master thesis, 2021)A study was conducted to investigate the potential of cocoa pod husk as feedstock for biochar production using the “Kon-tiki” kiln. The effect of cocoa pod husk biochar (CPHB) as a soil enhancer, was tested in particular ... -
Sheep grazing effects on soil carbon and nitrogen and implications for runoff water quality at a low alpine site in southern Norway
Martinsen, Vegard (2011;2011:10, Doctoral thesis, 2011)Grazing in outlying fields has a long history and is important in local communities worldwide. Alpine ecosystems, representing a large proportion of the land area in Europe, are under pressure from changes in climate and ... -
Significant build-up of soil organic carbon under climate-smart conservation farming in Sub-Saharan Acrisols
Martinsen, Vegard; Munera-Echeverri, Jose L; Obia, Alfred; Cornelissen, Gerard; Mulder, Jan (Journal article; Peer reviewed, 2019)Conservation farming (CF) involving minimumtillage, mulching and crop rotation may offer climate change adaptation and mitigation benefits. However, reported effects of CF, as applied by smallholders, on storage of soil ... -
Synergies and trade-offs between ecosystem services in analpine ecosystem grazed by sheep – An experimental approach
Austrheim, Gunnar; Speed, James David Mervyn; Evju, Marianne; Hester, Alison; Holand, Øystein; Loe, Leif Egil; Martinsen, Vegard; Mobæk, Ragnhild; Mulder, Jan; Steen, Harald; Thompson, Des B.A.; Mysterud, Atle (Journal article; Peer reviewed, 2016)Domestic livestock drives ecosystem changes in many of the world’s mountain regions, and can be the dominant influenceon soil, habitat and wildlife dynamics. Grazing impacts on ecosystem services (ES) vary according to ... -
Temporal variability of ammonium emission potentials for six plant species in an evergreen subtropical forest in Southwest China
Cui, Juan; Wang, Zhangwei; Zhang, Xiaoshan; Mulder, Jan; Zhang, Meigen (Journal article; Peer reviewed, 2017) -
The effect of biochar in combination with mineral or organic fertilizers on crop production in Nepal
Pandit, Naba Raj (PhD Thesis;2018:23, Doctoral thesis, 2018)The majority of poor people in Nepal relies on agriculture for employment and livelihood sustenance. Declining soil fertility and ongoing climate change are the key challenges faced by farmers, with adverse effects on crop ... -
The effect of biochar, lime and ash on maize yield in a long-term field trial in a Ultisol in the humid tropics
Hale, Sarah; Nurida, Neneng L.; Jubaedah, *; Mulder, Jan; Sørmo, Erlend; Silvani, Ludovica; Abiven, Samuel; Joseph, Stephen; Taherymoosavi, Sarasadat; Cornelissen, Gerard (Peer reviewed; Journal article, 2020)A multi-season field trial was carried out to investigate the effect of the amendment of biochar, lime, ash and washed biochar on the growth of maize. A degraded, strongly acidic Ultisol (pHKCl 3.60), with a relatively ... -
The fate of nitrogen in an Acrisol in Zambia under different management practices
Talmo, Ina Kristine (Master thesis, 2019)A 10-day 15N tracer experiment, using 15N-NO3 and 15N-NH4, was conducted on an Acrisol in Mkushi, Zambia, in a rain-fed maize field. The addition of the 15N label, as either 15N-NO3 or 15N-NH4, was equivalent to 0.1g/m2 ... -
The impact of planting basins under conservation farming with and without biochar on aggregate stability, soil organic carbon, and pH in Zambian Acrisols
Ellingsen, Elisabeth Time (Master thesis, 2018)Conservation Farming (CF) in Sub-Saharan Africa (SSA), including reduced tillage, return of crop residue, and crop rotation, has been found to increase maize yields in rain-fed agriculture. In combination with the application ... -
The potential of biochar in improving drainage, aeration and maize yields in heavy clay soils
Obia, Alfred; Mulder, Jan; Hale, Sarah; Nurida, Neneng; Cornelissen, Gerard (Journal article; Peer reviewed, 2018)Heavy clay soils are globally widespread but their poor drainage and poor aeration limit their use for agriculture. This study was designed to test the effect of the amendment of biochar (BC) from woody shrubs on ...