selected publications
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- Reducing losses but failing to sequester carbon in soils – the case of Conservation Agriculture and Integrated Soil Fertility Management in the humid tropical agro-ecosystem of Western Kenya. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 254:82-91. 2018
- Biological P cycling is influenced by the form of P fertilizer in an Oxisol. Biology and Fertility of Soils. 53:899-909. 2017
- Nitrogen dynamics and nitrous oxide emissions in a long-term trial on integrated soil fertility management in Western Kenya. Nutrient Cycling in Agroecosystems. 105:229-248. 2016
- Long-term effects of TSP and Minjingu phosphate rock applications on yield response of maize and soybean in a humid tropical maize–legume cropping system. Nutrient Cycling in Agroecosystems. 104:79-91. 2016
- Improving rural livelihoods as a “moving target”: trajectories of change in smallholder farming systems of Western Kenya. Regional Environmental Change. 15:1395-1407. 2015
- Eco efficiency of Integrated Soil Fertility Management in Western Kenya 2014
- Effect of reduced tillage and mineral fertilizer application on maize and soybean productivity. Experimental Agriculture. 48:159-175. 2012
- Crop and Soil Response to Tillage and Crop Residue Application in a Tropical Ferralsol in Sub-humid Western Kenya 2012
- Within-farm soil fertility gradients affect response of maize to fertiliser application in western Kenya. Nutrient Cycling in Agroecosystems. 76:171-182. 2007
- Optimising crop productivity in legume-cereal rotations through nitrogen and phosphorus management in western Kenya 2007
- Scaling Up Options on Integrated Soil Fertility management in Western Kenya: The Case of COSOFAP: Challenges and Opportunities 2007
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