selected publications
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article
- Brachialactone isomers and derivatives of Brachiaria humidicola reveal contrasting nitrification inhibiting activity. Plant Physiology and Biochemistry. 154:491-497. 2020
- Critical slope length for soil loss mitigation in maize-bean cropping systems in SW Kenya. Geoderma Regional. 22. 2020
- Soil and farm management effects on yield and nutrient concentrations of food crops in East Africa. Science of The Total Environment. 716:137078. 2020
- Reducing soil erosion in smallholder farming systems in east Africa through the introduction of different crop types. Experimental Agriculture. 56:183-195. 2020
- Market access and resource endowment define the soil fertility status of smallholder farming systems of South-Kivu, DR Congo. Soil Use and Management. 2020
- Deep soil carbon storage in tree-dominated land use systems in tropical lowlands of Kalimantan. Geoderma. 354:113864. 2019
- Nitrogen leaching losses and balances in conventional and organic farming systems in Kenya. Nutrient Cycling in Agroecosystems. 114:237-260. 2019
- Nitrate reductase activity in leaves as a plant physiological indicator of in vivo biological nitrification inhibition by Brachiaria humidicola. Plant Physiology and Biochemistry. 137:113-120. 2019
- Nitrogen release and synchrony in organic and conventional farming systems of the Central Highlands of Kenya. Nutrient Cycling in Agroecosystems. 113:283-305. 2019
- Climbing the mountain fast but smart: Modelling rubber tree growth and latex yield under climate change. Forest Ecology and Management. 439:55-69. 2019
- Converting forests into rubber plantations weakened the soil CH4 sink in tropical uplands. Land Degradation & Development. 30:2311-2322. 2019
- Modelling weed management strategies to control erosion in rubber plantations. Catena. 172:345-355. 2019
- Low 15N Natural Abundance in Shoot Tissue of Brachiaria humidicola Is an Indicator of Reduced N Losses Due to Biological Nitrification Inhibition (BNI).. Frontiers in Microbiology. 9:2383. 2018
- Biological nitrification inhibition activity in a soil-grown biparental population of the forage grass, Brachiaria humidicola. Plant and Soil. 426:401-411. 2018
- Impact of rubber plantation age on erosive potential studied with USLE model. Journal of Applied Water Engineering and Research. 6:252-261. 2018
- A mixed model for landscape soil organic carbon prediction across continuous profile depth in the mountainous subtropics. Geoderma. 330:177-192. 2018
- Comparison of Pixel- and Object-Based Approaches in Phenology-Based Rubber Plantation Mapping in Fragmented Landscapes. Remote Sensing. 10:44. 2017
- Residual effect of BNI by Brachiaria humidicola pasture on nitrogen recovery and grain yield of subsequent maize. Plant and Soil. 420:389-406. 2017
- Seasonal differences in soil respiration and methane uptake in rubber plantation and rainforest. Agriculture, Ecosystems & Environment. 240:314-328. 2017
- Quantifying uncertainty on sediment loads using bootstrap confidence intervals. Hydrology and Earth System Sciences. 21:571-588. 2017
- Rubber tree allometry, biomass partitioning and carbon stocks in mountainous landscapes of sub-tropical China. Forest Ecology and Management. 404:84-99. 2017
- Productivity, profitability and partial nutrient balance in maize-based conventional and organic farming systems in Kenya. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 235:61-79. 2016
- Impact of herbicide application on soil erosion and induced carbon loss in a rubber plantation of Southwest China. Catena. 145:180-192. 2016
- Land-use change impact on time-averaged carbon balances: rubber expansion and reforestation in a biosphere reserve, South-West China.. Forest Ecology and Management. 372:149-163. 2016
- Land-use change impact on time-averaged carbon balances: rubber expansion and reforestation in a biosphere reserve, South-West China.. Forest Ecology and Management. 372:149-163. 2016
- Sediment-associated organic carbon and nitrogen inputs from erosion and irrigation to rice fields in a mountainous watershed in Northwest Vietnam. Biogeochemistry. 129:93-113. 2016
- Sediment trap efficiency of paddy fields at the watershed scale in a mountainous catchment in northwest Vietnam. Biogeosciences. 13:3267-3281. 2016
- Response of ammonia-oxidizing bacteria and archaea to biochemical quality of organic inputs combined with mineral nitrogen fertilizer in an arable soil. Applied Soil Ecology. 95:128-139. 2015
- An explicit AFLP-based marker for monitoring Fusarium oxysporum f.sp. strigae in tropical soils. Biological Control. 89:42-52. 2015
- Resolution vs. image quality in pre-tsunami imagery used for tsunami impact models in Aceh, Indonesia. 2017 9th International Workshop on the Analysis of Multitemporal Remote Sensing Images (MultiTemp). 42:38-48. 2015
- Mid‐Infrared and Total X‐Ray Fluorescence Spectroscopy Complementarity for Assessment of Soil Properties. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL. 79:1375-1385. 2015
- Total elemental composition of soils in Sub-Saharan Africa and relationship with soil forming factors. Geoderma Regional. 5:157-168. 2015
- Promoting effect of Fusarium oxysporum [f.sp. strigae ] on abundance of nitrifying prokaryotes in a maize rhizosphere across soil types. Biological Control. 83:37-45. 2015
- Lasting influence of biochemically contrasting organic inputs on abundance and community structure of total and proteolytic bacteria in tropical soils. Soil Biology & Biochemistry. 74:204-213. 2014
- Implications of uncertainty and scale in carbon emission estimates on locally appropriate designs to reduce emissions from deforestation and degradation (REDD. Mitigation and Adaptation Strategies for Global Change. 19:757-772. 2014
- Quantification of total element concentrations in soils using total X-ray fluorescence spectroscopy (TXRF).. Science of The Total Environment. 463:374-388. 2013
- Tillage and varietal impacts on tomato (Solanum lycopersicum L.) production on an ultisol in central Cameroon. SOIL & TILLAGE RESEARCH. 128:1-8. 2013
- Land sparing or sharing? Exploring livestock fodder options in combination with land use zoning and consequences for livelihoods and net carbon stocks using the FALLOW model. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 159:145-160. 2012
- Impacts of soil and groundwater salinization on tree crop performance in post-tsunami Aceh Barat, Indonesia. Natural Hazards and Earth System Sciences. 12:2879-2891. 2012
- Generic Prediction of Soil Organic Carbon in Alfisols Using Diffuse Reflectance Fourier-Transform Mid-Infrared Spectroscopy. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL. 75:2358-2360. 2011
- Users’ perspectives on validity of a simulation model for natural resource management. International Journal of Agricultural Sustainability. 9:364-378. 2011
- Positive nitrogen balance of Acacia mangium woodlots as fallows in the Philippines based on 15N natural abundance data of N2 fixation. Agroforestry Systems. 81:221-233. 2011
- Linking spatio-temporal variation of crop response with sediment deposition along paddy rice terraces 2011
- Integration of mid-infrared spectroscopy and geostatistics in the assessment of soil spatial variability at landscape level. Geoderma. 158:398-411. 2010
- Cytological investigations on colonization of sorghum roots by the mycoherbicide Fusarium oxysporum f. sp. strigae and its implications for Striga control using a seed treatment delivery system. Biological Control. 53:249-257. 2010
- Assessing soil conservation strategies for upland cropping in Northeast Thailand with the WaNuLCAS model. Agroforestry Systems. 79:123-144. 2010
- Nutrient balances in African land use systems across different spatial scales: a review of approaches, challenges and progress.. Agriculture, Ecosystems & Environment. 136:1-15. 2010
- Cropping strategies, soil fertility investment and land management practices by smallholder farmers in communal and resettlement areas in Zimbabwe. Land Degradation & Development. 20:492-508. 2009
- Does vacuum-packaging or co-delivered amendments enhance shelf-life of Striga-mycoherbicidal products containing Fusarium oxysporum f. sp. strigae during storage?. Biocontrol Science and Technology. 19:349-367. 2009
- Efficacy of Pesta granular formulation of Striga-mycoherbicide Fusarium oxysporum f. s p. strigae Foxy 2 after 5-year of storage. Journal of Plant Diseases and Protection. 115:259-262. 2008
- Modelling of planted legume fallows in Western Kenya. (II) Productivity and sustainability of simulated management strategies. Agroforestry Systems. 74:143-154. 2008
- Agroforestation of Grasslands in Southeast Asia: WaNuLCAS Model Scenarios for Shade-Based Imperata Control During Tree Establishment 2008
- Modelling of planted legume fallows in Western Kenya using WaNuLCAS. (I) Model calibration and validation. Agroforestry Systems. 70:197-209. 2007
- Integrated Soil Fertility Management and Poverty Traps in Western Kenya 2007
- Variable responses of the depth of tree nitrogen uptake to pruning and competition.. Tree Physiology. 26:1529-1535. 2006
- Prediction of carbon mineralization rates from different soil physical fractions using diffuse reflectance spectroscopy. Soil Biology & Biochemistry. 38:1658-1664. 2006
- Prediction of carbon mineralization rates from different soil physical fractions using diffuse reflectance spectroscopy. Soil Biology & Biochemistry. 38:1658-1664. 2006
- Laboratory Validation of a Resource Quality‐Based Conceptual Framework for Organic Matter Management. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL. 69:1135-1145. 2005
- Laboratory Validation of a Resource Quality‐Based Conceptual Framework for Organic Matter Management. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL. 69:1135-1145. 2005
- Potential of agroforestry for carbon sequestration and mitigation of greenhouse gas emissions from soils in the tropics 2005
- Potential of agroforestry for carbon sequestration and mitigation of greenhouse gas emissions from soils in the tropics. Nutrient Cycling in Agroecosystems. 71:43-54. 2005
- Harvesting management options for legumes intercropped in napier grass in the central highlands of Kenya. Tropical Grasslands. 38:234-244. 2004
- Harvesting management options for legumes intercropped in napier grass in the central highlands of Kenya. Tropical Grasslands. 38:234-244. 2004
- Subsoil Nitrogen Capture in Mixed Legume Stands as Assessed by Deep Nitrogen‐15 Placement. Soil Science Society of America Journal. 67:573-582. 2003
- Subsoil nitrogen capture in mixed legume stands as assessed by deep nitrogen-15 placement. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL. 67:573-582. 2003
- Access and excess problems in plant nutrition. Plant and Soil. 247:25-40. 2002
- The inherent 'safety-net' of an Acrisol: measuring and modelling retarded leaching of mineral nitrogen. European Journal of Soil Science. 53:185-194. 2002
- Implications of livestock feeding management on soil fertility in the smallholder farming systems of sub-Saharan Africa. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 84:227-243. 2001
- Organic inputs for soil fertility management in tropical agroecosystems: Application of an organic resource database. Agriculture, Ecosystems & Environment. 83:27-42. 2001
- Organic inputs for soil fertility management in tropical agroecosystems: application of an organic resource database. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 83:27-42. 2001
- Root distributions partially explain N-15 uptake patterns in Gliricidia and Peltophorum hedgerow intercropping systems. Plant and Soil. 235:167-179. 2001
- An analysis of the economic values of novel cropping systems in N. E. Thailand and S. Sumatra. Njas-wageningen Journal of Life Sciences. 48:105-114. 2000
- Crop yield, C and N balance of three types of cropping systems on an Ultisol in Northern Lampung. Njas-wageningen Journal of Life Sciences. 48:3-17. 2000
- Dynamics of density fractions of macro-organic matter after forest conversion to sugarcane and woodlots, accounted for in a modified Century model. Njas-wageningen Journal of Life Sciences. 48:61-73. 2000
- Putting Legume N 2 -Fixation to Work in Cropping Systems of Southern Africa 2000
- Quantification of biological N-2 fixation of hedgerow trees in Northern Lampung. Njas-wageningen Journal of Life Sciences. 48:47-59. 2000
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dataset
- Rubber tree allometry, biomass partitioning and carbon stocks in mountainous landscapes of sub-tropical China 2018
- Mid-infrared and total X-ray fluorescence spectroscopy complementarity for assessment of soil properties 2016
- Total elemental composition of soils in Sub-Saharan Africa and relationship with soil forming factors 2016
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document
- Climate-smart crop-livestock systems for smallholders in the tropics: integration of new forage hybrids to intensify agriculture and to mitigate climate change through regulation of nitrification in soil 2014
- Using biological nitrification inhibition as a strategy to improve nitrogen recovery and nitrogen use efficiency of agricultural systems and to mitigate climate change 2013
- Sediment induced soil spatial variation in paddy fields of Northwest Vietnam 2010
- Scaling-up nutrient balances from plot to village level under small-holder settlement schemes in sub-humid Zimbabwe 2008
- Nitrogen use efficiency of monoculture and hedgerow intercropping in the humid tropics 2005
- Catching and competing for mobile nutrients in soils 2004
- Chemical characterisation of a standard set of organic materials 2004