Blar i Brage NMBU på forfatter "Obia, Alfred"
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Biochar effect on maize yield and soil characteristics in five conservation farming sites in Zambia
Cornelissen, Gerard; Martinsen, Vegard; Shitumbanuma, Victor; Alling, Vanja Karin Gunilla; Breedveld, Gijs D.; Rutherford, W.; Sparrevik, Lars Magnus; Hale, Sarah; Obia, Alfred; Mulder, Jan (Journal article; Peer reviewed, 2013)Biochar addition to agricultural soils can improve soil fertility, with the added bonus of climate change mitigation through carbon sequestration. Conservation farming (CF) is precision farming, often combining minimum ... -
Effect of Soil pH Increase by Biochar on NO, N2O and N2 Production during Denitrification in Acid Soils
Obia, Alfred; Cornelissen, Gerard; Mulder, Jan; Dörsch, Peter (Journal article; Peer reviewed, 2015) -
Effect of soil pH Increase by Biochar on NO, N2O and N2 production during denitrification in acid soils
Obia, Alfred; Cornelissen, Gerard; Mulder, Jan; Dörsch, Peter (Journal article; Peer reviewed, 2015) -
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 ... -
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 ... -
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 ...