selected publications
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article
- Effect of feeding practices and manure quality on CH4 and N2O emissions from uncovered cattle manure heaps in Kenya. Waste Management. 126:209-220. 2021
- Interactive effects of dung deposited onto urine patches on greenhouse gas fluxes from tropical pastures in Kenya.. Science of The Total Environment. 761:143184-143184. 2021
- SUSTAINABLE DEVELOPMENT OF CROP-LIVESTOCK FARMS IN AFRICA. FRONTIERS OF AGRICULTURAL SCIENCE AND ENGINEERING. 8:175-181. 2021
- Soil Greenhouse Gas Fluxes From Maize Production Under Different Soil Fertility Management Practices in East Africa. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES. 125. 2020
- Severe below-maintenance feed intake increases methane yield from enteric fermentation in cattle.. British Journal of Nutrition. 123:1239-1246. 2020
- The effects of climate on decomposition of cattle, sheep and goat manure in Kenyan tropical pastures. Plant and Soil. 451:325-343. 2020
- Influence of soil properties on N2O and CO2 emissions from excreta deposited on tropical pastures in Kenya. Soil Biology & Biochemistry. 140:107636. 2020
- Earthworms regulate ability of biochar to mitigate CO2 and N2O emissions from a tropical soil. Applied Soil Ecology. 140:57-67. 2019
- Manure management practices and policies in sub-Saharan Africa: Implications on manure quality as a fertilizer. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS. 3. 2019
- Soil carbon dioxide and methane fluxes from forests and other land use types in an African tropical montane region. Biogeochemistry. 143:171-190. 2019
- Pasture enclosures increase soil carbon dioxide flux rate in Semiarid Rangeland, Kenya.. Carbon Balance and Management. 13:24-24. 2018
- Enhancing soil organic carbon, particulate organic carbon and microbial biomass in semi-arid rangeland using pasture enclosures.. BMC Ecology. 18:1-9. 2018
- Effect of dung quantity and quality on greenhouse gas fluxes from tropical pastures in Kenya. Global Biogeochemical Cycles. 32:1589-1604. 2018
- Management intensity controls soil N2O fluxes in an Afromontane ecosystem. Science of The Total Environment. 624:769-780. 2018
- Conversion of natural forest results in a significant degradation of soil hydraulic properties in the highlands of Kenya. Soil & Tillage Research. 176:36-44. 2018
- Land Use, Land Use History, and Soil Type Affect Soil Greenhouse Gas Fluxes From Agricultural Landscapes of the East African Highlands. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES. 123:976-990. 2018
- Soil nitrous oxide emissions from agricultural soils in Canada: Exploring relationships with soil, crop and climatic variables. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 254:69-81. 2018
- Simple and robust algorithms to estimate liveweight in African smallholder cattle. Animal Production Science. 58:1758-1765. 2018
- Land use affects total dissolved nitrogen and nitrate concentrations in tropical montane streams in Kenya.. Science of The Total Environment. 603:519-532. 2017
- Smallholder farms in eastern African tropical highlands have low soil greenhouse gas fluxes. Biogeosciences. 14:187-202. 2017
- Methane and Nitrous Oxide Emissions from Cattle Excreta on an East African Grassland. Journal of Environmental Quality. 45:1531-1539. 2016
- Greenhouse gas emissions from natural ecosystems and agricultural lands insub-Saharan Africa: synthesis of available data and suggestions for furtherresearch. Biogeosciences. 13:4789-4809. 2016
- Long-term assessment of soil and water conservation measures (Fanya-juu terraces) on soil organic matter in South Eastern Kenya. Geoderma. 274:1-9. 2016
- Greenhouse gas fluxes from agricultural soils of Kenya and Tanzania. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES. 121:1568-1580. 2016
- Smallholder African farms in western Kenya have limited greenhouse gas fluxes. Biogeosciences Discussions. 12:15301-15336. 2015
- Ground cover rice production systems increase soil carbon and nitrogen stocks at regional scale. Biogeosciences. 12:4831-4840. 2015
- Regional nitrogen budget of the Lake Victoria Basin, East Africa: syntheses, uncertainties and perspectives. Environmental Research Letters. 9:105009. 2014
- Evidencing overwinter loss of residual organic and clay-fixed nitrogen from spring-applied, N-15-labelled pig slurry. Canadian Journal of Soil Science. 94:1-8. 2014
- Global assessment of manure management policies and practices 2014
- Improving estimates of GHG emission factors from livestock production systems on smallholder farms 2014
- Quantifying greenhouse gas emissions from managed and natural soils 2014
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- Editorial Overview: Climate change, reactive nitrogen, food security and sustainable agriculture - the case of N2O. Current Opinion in Environmental Sustainability. A1-A4. 2020
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review
- Closing maize yield gaps in sub-Saharan Africa will boost soil N2O emissions. Current Opinion in Environmental Sustainability. 95-105. 2020