selected publications
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article
- Assessing and understanding non-responsiveness of maize and soybean to fertilizer applications in African smallholder farms. Agriculture, Ecosystems & Environment. 305:107165. 2021
- Mineral fertilizer use in land-scarce conditions: Case of Rwanda. OPEN AGRICULTURE. 5:690-702. 2020
- Intensification options of small holders’ cassava production in South‐West Nigeria. Agronomy Journal. 2020
- Combining organic and mineral fertilizers as a climate-smart integrated soil fertility management practice in sub-Saharan Africa: A meta-analysis. PLOS ONE. 15. 2020
- Maize production under combined Conservation Agriculture and Integrated Soil Fertility Management in the sub-humid and semi-arid regions of Kenya. Field Crops Research. 254:107833. 2020
- Variability of provitamin A carotenoids in plantain: Influence of cultivar, bunch type, maturation stage, and location. Journal of Food Composition and Analysis. 94:103636. 2020
- Towards actionable farm typologies: Scaling adoption of agricultural inputs in Rwanda. Agricultural Systems. 183:102857. 2020
- Participatory Exploration of the Heterogeneity in Household Socioeconomic, Food, and Nutrition Security Status for the Identification of Nutrition-Sensitive Interventions in the Rwandan Highlands. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS. 4. 2020
- Are farmers using cropping system intensification technologies experiencing poverty reduction in the Great Lakes Region of Africa. Food and Energy Security. 9. 2020
- Micro-livestock in smallholder farming systems: the role, challenges and opportunities for cavies in South Kivu, eastern DR Congo.. Tropical Animal Health and Production. 52:1167-1177. 2020
- Science-based decision support for formulating crop fertilizer recommendations in sub-Saharan Africa. Agricultural Systems. 180:102790. 2020
- The Rural Household Multiple Indicator Survey, data from 13,310 farm households in 21 countries.. Scientific Data. 7:46-46. 2020
- Can a Combination of UAV-Derived Vegetation Indices with Biophysical Variables Improve Yield Variability Assessment in Smallholder Farms?. AGRONOMY-BASEL. 10. 2020
- Genetically Different Isolates of the Arbuscular Mycorrhizal Fungus Rhizophagus irregularis Induce Differential Responses to Stress in Cassava. Frontiers in Plant Science. 11. 2020
- Land Access in the Development of Horticultural Crops in East Africa. A Case Study of Passion Fruit in Burundi, Kenya, and Rwanda. Sustainability. 12. 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
- Rapid Acquisition, Management, and Analysis of Spatial Maize (Zea mays L.) Phenological Data-Towards 'Big Data' for Agronomy Transformation in Africa. AGRONOMY-BASEL. 10. 2020
- Reconciling yield gains in agronomic trials with returns under African smallholder conditions. Scientific Reports. 10. 2020
- The response of climbing bean to fertilizer and organic manure in the Northern Province of Rwanda. Experimental Agriculture. 56:722-737. 2020
- Biophysical potential of crop residues for biochar carbon sequestration, and co-benefits, in Uganda.. Ecological Applications. 29. 2019
- The role of nitrogen fixation in African smallholder agriculture. Agriculture, Ecosystems & Environment. 285:106601. 2019
- Food access deficiencies in sub-Saharan Africa: prevalence and implications for agricultural interventions. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS. 3:104. 2019
- The role of legumes in the sustainable intensification of African smallholder agriculture : Lessons learnt and challenges for the future. Agriculture, Ecosystems & Environment. 284:106583. 2019
- Variability of soybean response to rhizobia inoculant, vermicompost, and a legume-specific fertilizer blend in Siaya County of Kenya.. Soil & Tillage Research. 194:104290. 2019
- Banana leaf pruning to facilitate annual legume intercropping as an intensification strategy in the East African highlands. European Journal of Agronomy. 110:125923. 2019
- Balanced nutrient requirements for maize in the Northern Nigerian Savanna: Parameterization and validation of QUEFTS model. Field Crops Research. 241:107585. 2019
- Promoting the use of locally produced crops in making cereal-legume-based composite flours: An assessment of nutrient, antinutrient, mineral molar ratios, and aflatoxin content.. Food Chemistry. 286:651-658. 2019
- Farmers' preferences for high-input agriculture supported by site-specific extension services: Evidence from a choice experiment in Nigeria.. Agricultural Systems. 173:12-26. 2019
- Long-term application of low C:N residues enhances maize yield and soil nutrient pools across Kenya. Nutrient Cycling in Agroecosystems. 114:261-276. 2019
- N2Africa Annual Report 2018 2019
- Long‐term recovery of the functional community assembly and carbon pools in an African tropical forest succession. Biotropica. 51:319-329. 2019
- Biochar addition persistently increased soil fertility and yields in maize-soybean rotations over 10 years in sub-humid regions of Kenya. Field Crops Research. 235:18-26. 2019
- Nutrient use efficiency and crop yield response to the combined application of cattle manure and inorganic fertilizer in sub-Saharan Africa. Nutrient Cycling in Agroecosystems. 113:181-199. 2019
- Impact of arbuscular mycorrhizal fungi and earthworms on soil aggregate stability, glomalin, and performance of pigeonpea, Cajanus cajan. Soil Research. 57:53-65. 2019
- Beyond averages: new approaches to understand heterogeneity and risk of technology success or failure in smallholder farming. Experimental Agriculture. 55:84-106. 2019
- FROM BEST FIT TECHNOLOGIES TO BEST FIT SCALING: INCORPORATING AND EVALUATING FACTORS AFFECTING THE ADOPTION OF GRAIN LEGUMES IN SUB-SAHARAN AFRICA. Experimental Agriculture. 55:226-251. 2019
- Poor farmers - poor yields: socio-economic, soil fertility and crop management indicators affecting climbing bean productivity in northern Rwanda. Experimental Agriculture. 55:14-34. 2019
- Variability of soybean response to rhizobia inoculant, Vermicompost, and a legume-specific fertilizer blend in Siaya County of Kenya. bioRxiv. 476291. 2018
- Occurrence of aflatoxin in agricultural produce from local markets in Burundi and Eastern Democratic Republic of Congo.. Food Science and Nutrition. 6:2227-2238. 2018
- Response of common bean (Phaseolus vulgaris L.) to nitrogen, phosphorus and rhizobia inoculation across variable soils in Zimbabwe.. Agriculture, Ecosystems & Environment. 266:167-173. 2018
- Xanthomonas Wilt of Banana (BXW) in Central Africa: Opportunities, challenges, and pathways for citizen science and ICT-based control and prevention strategies. Njas-wageningen Journal of Life Sciences. 86-87:89-100. 2018
- What are the key factors influencing consumers' preference and willingness to pay for meat products in Eastern DRC?. Food Science and Nutrition. 6:2321-2336. 2018
- Incidence and farmers’ knowledge of aflatoxin contamination and control in Eastern Democratic Republic of Congo. Food Science and Nutrition. 6:1607-1620. 2018
- Cowpea (Vigna unguiculata L. Walp) hosts several widespread bradyrhizobial root nodule symbionts across contrasting agro-ecological production areas in Kenya.. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 261:161-171. 2018
- Reducing spatial variability of soybean response to rhizobia inoculants in farms of variable soil fertility in Siaya County of western Kenya.. Agriculture, Ecosystems & Environment. 261:153-160. 2018
- Evaluation of MALDI-TOF mass spectrometry for the competitiveness analysis of selected indigenous cowpea (Vigna unguiculata L. Walp.) Bradyrhizobium strains from Kenya.. Applied Microbiology and Biotechnology. 102:5265-5278. 2018
- The interactive effect of residue quality, quantity, soil texture and N Management on maize crop yield in Ghana 2018
- Agricultural intensification scenarios, household food availability and greenhouse gas emissions in Rwanda: Ex-ante impacts and trade-offs. Agricultural Systems. 163:16-26. 2018
- Soyabean response to rhizobium inoculation across sub-Saharan Africa: Patterns of variation and the role of promiscuity.. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 261:211-218. 2018
- Responses of cassava growth and yield to leaf harvesting frequency and NPK fertilizer in South Kivu, Democratic Republic of Congo. Field Crops Research. 214:194-201. 2017
- Looking back and moving forward: 50 years of soil and soil fertility management research in sub-Saharan Africa. International Journal of Agricultural Sustainability. 15:613-631. 2017
- Profitability of diammonium phosphate use in bush and climbing bean-maize rotations in smallholder farms of Central Burundi. Field Crops Research. 212:52-60. 2017
- Sustainable intensification through rotations with grain legumes in Sub-Saharan Africa : A review. Agriculture, Ecosystems & Environment. 261:172-185. 2017
- Dilemma of nitrogen management for future food security in sub-Saharan Africa – a review. Soil Research. 55:425-434. 2017
- Benefits of inoculation, P fertilizer and manure on yields of common bean and soybean also increase yield of subsequent maize.. Agriculture, Ecosystems & Environment. 261:219-229. 2017
- Cassava yield loss in farmer fields was mainly caused by low soil fertility and suboptimal management practices in two provinces of the Democratic Republic of Congo. European Journal of Agronomy. 89:107-123. 2017
- Improving the speed of adoption of agricultural technologies and farm performance through farmer groups: evidence from the Great Lakes region of Africa. Agricultural Economics. 48:241-259. 2017
- System productivity and natural resource integrity in smallholder farming: Friends or foes? 2017
- Productivity, profitability and partial nutrient balance in maize-based conventional and organic farming systems in Kenya. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 235:61-79. 2016
- Sustainable intensification of agricultural systems in the Central African Highlands: The need for institutional innovation. Agricultural Systems. 145:165-176. 2016
- Phosphorus in smallholder farming systems of sub-Saharan Africa: implications for agricultural intensification. Nutrient Cycling in Agroecosystems. 104:321-340. 2016
- Response to G.W. Sileshi's Letter to the Editor on AGEE13857 (2015): Exclusion of soil macrofauna did not affect soil quality - statistical artefact or true lack of effect?. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 221:282-284. 2016
- Facultative nitrogen fixation by legumes in the central Congo basin is downregulated during late successional stages. Biotropica. 48:281-284. 2016
- Understanding variability in soybean yield and response to P-fertilizer and rhizobium inoculants on farmers’ fields in northern Nigeria. Field Crops Research. 186:133-145. 2016
- Agricultural extension in Eastern Democratic Republic of Congo: Does gender matter?. European Review of Agricultural Economics. 43:841-873. 2016
- Integrated soil fertility management: from concept to practice in Eastern DR Congo. International Journal of Agricultural Sustainability. 14:100-118. 2016
- Multi-stakeholder processes in central Africa: successes, struggles and lessons learned 2016
- Overcoming challenges for crops, people and policies in Central Africa. The story of CIALCA stakeholder engagement 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
- Exclusion of soil macrofauna did not affect soil quality but increased crop yields in a sub-humid tropical maize-based system. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 208:75-85. 2015
- Soil fertility decline at the base of rural poverty in sub-Saharan Africa.. Nature plants. 1:15101-15101. 2015
- Response of maize (Zea mays) to the application of foliar fertilizers in the Sudan and Guinea savanna zone of Nigeria. Journal of Plant Nutrition and Soil Science. 178:374-383. 2015
- Climate-smart intensification of West-Africa's cocoa systems: proceedings of the Global Science Conference, March 16-18, Le Corum, Montpellier France 2015
- Ex ante appraisal of agricultural research and extension A choice experiment on climbing beans in Burundi. Outlook on Agriculture. 44:61-67. 2015
- Improving the adoption of agricultural technologies and farm performance through farmer groups: Evidence from the Great Lakes Region of Africa: proceeding 2015
- Integrated soil fertility management in sub-Saharan Africa: unravelling local adaptation. SOIL. 1:491-508. 2015
- Integrated soil fertility management: contributions of framework and practices to climate-smart agriculture 2015
- Benefits of legume–maize rotations: Assessing the impact of diversity on the productivity of smallholders in Western Kenya. Field Crops Research. 168:75-85. 2014
- The ‘One cow per poor family’ programme: Current and potential fodder availability within smallholder farming systems in southwest Rwanda. Agricultural Systems. 131:11-22. 2014
- Sustainable intensification and the African smallholder farmer. Current Opinion in Environmental Sustainability. 8:15-22. 2014
- Response to Sommer et al. (2014) Fertiliser use is not required as a fourth principle to define conservation agriculture. Field Crops Research. 167:159-159. 2014
- Resource use and food self-sufficiency at farm scale within two agro-ecological zones of Rwanda. Food Security. 6:609-628. 2014
- 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
- Understanding the Process of Agricultural Technology Adoption: Mineral Fertilizer in Eastern DR Congo. World Development. 59:132-146. 2014
- Enhancing Maize Productivity and Profitability Using Organic Inputs and Mineral Fertilizer in Central Kenya Small-Hold Farms. Experimental Agriculture. 50:250-269. 2014
- Residual phosphorus effects and nitrogen × phosphorus interactions in soybean–maize rotations on a P-deficient Ferralsol. Nutrient Cycling in Agroecosystems. 98:187-201. 2014
- A fourth principle is required to define Conservation Agriculture in sub-Saharan Africa: The appropriate use of fertilizer to enhance crop productivity. Field Crops Research. 155:10-13. 2014
- Assessing the Influence of Farmers’ Field Schools and Market Links on Investments in Soil Fertility Management Under Potato Production in Uganda 2014
- ISFM Adaptation Trials: Farmer-to Farmer Facilitation, Farmer-Led Data Collection, Technology Learning and Uptake 2014
- Knowledge, attitude and practices used in the control of Striga in maize by smallholder farmers of western Kenya 2014
- Returns to Production of Common Bean, Soybean, and Groundnut in Rwanda 2014
- Integrated Soil Fertility Management: Aggregate carbon and nitrogen stabilization in differently textured tropical soils. Soil Biology & Biochemistry. 67:124-132. 2013
- Managing Tephrosia mulch and fertilizer to enhance coffee productivity on smallholder farms in the Eastern African Highlands. European Journal of Agronomy. 48:19-29. 2013
- Nutrient imbalance and yield limiting factors of low input East African highland banana (Musa spp. AAA-EA) cropping systems. Field Crops Research. 147:68-78. 2013
- Influence of plant density on variability of soil fertility and nutrient budgets in low input East African highland banana (Musa spp. AAA-EA) cropping systems. Nutrient Cycling in Agroecosystems. 95:187-202. 2013
- Soil Heterogeneity and Soil Fertility Gradients in Smallholder Farms of the East African Highlands. Soil Science Society of America Journal. 77:525-538. 2013
- Ecological characteristics and cultivar influence optimal plant density of East African highland bananas (Musa spp., AAA-EA) in low input cropping systems. Scientia Horticulturae. 150:299-311. 2013
- Assessing farmers’ interest in agroforestry in two contrasting agro-ecological zones of Rwanda. Agroforestry Systems. 87:141-158. 2013
- Root hairs explain P uptake efficiency of soybean genotypes grown in a P-deficient Ferralsol. Plant and Soil. 369:269-282. 2013
- Banana systems in the humid highlands of Sub-Saharan Africa: enhancing resilence and productivity 2013
- CIALCA interventions for productivity increase of cropping system components in the African Great Lakes zone 2013
- CIALCA's efforts on integrating farming system components and exploring related trade-offs 2013
- Effect of banana leaf pruning on legume yield in banana-legume intercropping systems in Eastern Democratic Republic of Congo 2013
- Impact of interventions by consortium for improving agriculturebased livelihoohds in Central Africa (CIALCA) on food and nutrition security of farmer households 2013
- Integrated Soil Fertility Management in Central Africa: experiences of the Consortium for Improving Agriculturebased Livelihoods in Central Africa (CIALCA) 2013
- Medium-term impact of tillage and residue management on soil aggregate stability, soil carbon and crop productivity. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 164:14-22. 2013
- N2Africa: putting nitrogen fixation to work for smallholder farmers in Africa 2013
- Partial substitution of phosphorus fertiliser by farmyard manure and its localised application increases agronomic efficiency and profitability of maize production. Field Crops Research. 140:32-43. 2013
- Walking the impact pathway: CIALCA's efforts to mobilising agricultural knowledge for the African Great Lakes Region 2013
- Minimum tillage and vegetative barrier effects on crop yields in relation to soil water content in the Central Kenya highlands. Field Crops Research. 132:129-138. 2012
- Effect of reduced tillage and mineral fertilizer application on maize and soybean productivity. Experimental Agriculture. 48:159-175. 2012
- Combining Mineral Fertilizer and Green Manure for Increased, Profitable Cassava Production. Agronomy Journal. 104:178-187. 2012
- Evaluation of the CSM-CROPGRO-Soybean Model for Dual-Purpose Soyabean in Kenya 2012
- Integrated soil fertility management in Central Africa: experiences of the consortium for Improving agriculture based livelihoods in Central Africa (CIALCA) 2012
- Long-term integrated soil fertility management in South-western Nigeria: Crop performance and impact on the soil fertility status. Plant and Soil. 273:337-354. 2012
- Socio-ecological niches for minimum tillage and crop residue retention in continuous maize cropping systems in smallholder farms of central Kenya. Agronomy Journal. 103:188-198. 2012
- The impact of Desmodium spp. and cutting regimes on the agronomic and economic performance of Desmodium-maize intercropping system in western Kenya. Field Crops Research. 137:97-107. 2012
- Dissemination of Integrated Soil Fertility Management Technologies Using Participatory Approaches in the Central Highlands of Kenya 2011
- Tillage and vegetative barrier effects on soil conservation and short-term economic benefits in the Central Kenya highlands. Field Crops Research. 122:85-94. 2011
- Soil fertility management: Impacts on soil macrofauna, soil aggregation and soil organic matter allocation.. Applied Soil Ecology. 48:53-62. 2011
- Litter quality impacts short- but not long-term soil carbon dynamics in soil aggregate fractions.. Ecological Applications. 21:695-703. 2011
- Production gradients in smallholder banana (cv. Giant Cavendish) farms in Central Kenya. Scientia Horticulturae. 127:475-481. 2011
- Effect of intercropping maize and soybeans on Striga hermonthica parasitism and yield of maize. Archives of Phytopathology and Plant Protection. 44:158-167. 2011
- Agronomic use efficiency of N fertilizer in maize-based systems in sub-Saharan Africa within the context of integrated soil fertility management. Plant and Soil. 339:35-50. 2011
- Communicating complexity: Integrated assessment of trade-offs concerning soil fertility management within African farming systems to support innovation and development. Agricultural Systems. 104:191-203. 2011
- Agricultural management affects earthworm and termite diversity across humid to semi-arid tropical zones. Agriculture, Ecosystems & Environment. 140:148-154. 2011
- Increased productivity through integrated soil fertility management in cassava–legume intercropping systems in the highlands of Sud-Kivu, DR Congo. Field Crops Research. 120:76-85. 2011
- Comparative Analysis of the Current and Potential Role of Legumes in Integrated Soil Fertility Management in East Africa 2011
- Comparison of organic versus mineral resource effects on short-term aggregate carbon and nitrogen dynamics in a sandy soil versus a fine textured soil. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 140:361-371. 2011
- Does the combined application of organic and mineral nutrient sources influence maize productivity? A meta-analysis 2011
- Effect of Organic Inputs and Mineral Fertilizer on Maize Yield in a Ferralsol and a Nitisol Soil in Central Kenya 2011
- In Vitro Selection of Soybean Accessions for Induction of Germination of Striga hermonthica (Del.) Benth Seeds and Their Effect on Striga hermonthica Attachment on Associated Maize 2011
- Increasing Productivity Through Maize–Legume Intercropping in Central Kenya 2011
- Integrated soil fertility management program = Programa de manejo integrado de la fertilidad del suelo 2011
- Inter and Intra-Specific Variation of Legumes and Mechanisms to Access and Adapt to Less Available Soil Phosphorus and Rock Phosphate 2011
- Interaction Between Resource Quality, Aggregate Turnover, Carbon and Nitrogen Cycling in the Central Highlands of Kenya 2011
- Nitrogen and phosphorus capture and recovery efficiencies, and crop responses to a range of soil fertility management strategies in sub-Saharan Africa 2011
- Organic resource quality influences short-term aggregate dynamics and soil organic carbon and nitrogen accumulation. Soil Biology & Biochemistry. 43:657-666. 2011
- Residual Effects of Applied Phosphorus Fertilizer on Maize Grain Yield and Phosphorus Recovery from a Long-Term Trial in Western Kenya 2011
- Soybean Varieties, Developed in Lowland West Africa, Retain Their Promiscuity and Dual-Purpose Nature Under Highland Conditions in Western Kenya 2011
- Targeting resources within diverse, heterogeneous and dynamic farming systems: Towards a ‘uniquely African green revolution’ 2011
- The Effects of Integration of Organic and Inorganic Sources of Nutrient on Maize Yield in Central Kenya 2011
- Trade-offs between the short- and long-term effects of residue quality on soil C and N dynamics. Plant and Soil. 338:159-169. 2011
- Variation in Socio-economic Characteristics and Natural Resource Management in Communities with Different Potato Market Linkages in the Highlands of Southwestern Uganda 2011
- Economic analysis of different options in integrated pest and soil fertility management in maize systems of Western Kenya. Agricultural Economics. 41:471-482. 2010
- Nitrogen and phosphorus capture and recovery efficiencies, and crop responses to a range of soil fertility management strategies in sub-Saharan Africa. Nutrient Cycling in Agroecosystems. 88:59-77. 2010
- Residue quality and N fertilizer do not influence aggregate stabilization of C and N in two tropical soils with contrasting texture. Nutrient Cycling in Agroecosystems. 88:121-131. 2010
- Participatory evaluation of integrated pest and soil fertility management options using ordered categorical data analysis. Agricultural Systems. 103:233-244. 2010
- The diversity of rural livelihoods and their influence on soil fertility in agricultural systems of East Africa - A typology of smallholder farms. Agricultural Systems. 103:83-97. 2010
- A staggered maize-legume intercrop arrangement robustly increases crop yields and economic returns in the highlands of Central Kenya.. Field Crops Research. 115:132-139. 2010
- Benefits and potential use of arbuscular mycorrhizal fungi (AMF) in banana and plantain (Musa spp.) Systems in Africa 2010
- Integrated soil fertility management Operational definition and consequences for implementation and dissemination. Outlook on Agriculture. 39:17-24. 2010
- Reducing labour and input costs in soybean production by smallholder farmers in south-western Kenya. Field Crops Research. 117:70-80. 2010
- Strategic phosphorus application in legume-cereal rotations increases land productivity and profitability in Western Kenya. Experimental Agriculture. 46:35-52. 2010
- Digital Soil Map of the World. Science. 325:680-681. 2009
- Managing N availability and losses by combining fertilizer-N with different quality residues in Kenya.. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 131:308-314. 2009
- Fertilizer and Residue Quality Effects on Organic Matter Stabilization in Soil Aggregates. Soil Science Society of America Journal. 73:961-966. 2009
- Genetic diversity of indigenous Bradyrhizobium nodulating promiscuous soybean [Glycine max (L) Merr.] varieties in Kenya: Impact of phosphorus and lime fertilization in two contrasting sites. Plant and Soil. 322:151-163. 2009
- Biodiversity, carbon stocks and sequestration potential in aboveground biomass in smallholder farming systems of western Kenya. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 129:238-252. 2009
- Determinants of the decision to adopt integrated soil fertility management practices by smallholder farmers in the central highlands of Kenya. Experimental Agriculture. 45:61-75. 2009
- Organic and Mineral Input Management to Enhance Crop Productivity in Central Kenya. Agronomy Journal. 101:1266-1275. 2009
- Combining organic and mineral fertilizers for integrated soil fertility management in smallholder farming systems of Kenya : Explorations using the crop-soil model FIELD. Agronomy Journal. 100:1511-1526. 2008
- Interactive effects from combining fertilizer and organic residue inputs on nitrogen transformations. Soil Biology & Biochemistry. 40:2375-2384. 2008
- Yield gaps, nutrient use efficiencies and response to fertilisers by maize across heterogeneous smallholder farms of western Kenya. Plant and Soil. 313:19-37. 2008
- Plant age and rock phosphate effects on the organic resource quality of herbaceous legume residues and their N and P release dynamics. Agronomy for Sustainable Development. 28:429-437. 2008
- Aggregating field-scale knowledge into farm-scale models of African smallholder systems: Summary functions to simulate crop production using APSIM. Agricultural Systems. 97:151-166. 2008
- Integrated management of Striga hermonthica, stemborers, and declining soil fertility in western Kenya. Field Crops Research. 107:102-115. 2008
- The prospects of reduced tillage in tef (Eragrostis tef Zucca) in Gare Arera, West Shawa Zone of Oromiya, Ethiopia. Soil & Tillage Research. 99:58-65. 2008
- Integrated Nutrient Management: Concepts and Experiencefrom Sub-Saharan Africa 2008
- Potential nutrient supply, nutrient utilization efficiencies, fertilizer recovery rates and maize yield in northern Nigeria. Nutrient Cycling in Agroecosystems. 80:161-172. 2008
- Unravelling the effects of soil and crop management on maize productivity in smallholder agricultural systems of western Kenya—An application of classification and regression tree analysis. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 123:137-150. 2008
- Organic matter quality and management effects on enrichment of soil organic matter fractions in contrasting soils in Zimbabwe. Plant and Soil. 296:137-150. 2007
- Soil organic carbon dynamics, functions and management in West African agro-ecosystems. Agricultural Systems. 94:13-25. 2007
- Comparative short-term effects of different quality organic resources on maize productivity under two different environments in Zimbabwe. Nutrient Cycling in Agroecosystems. 76:271-284. 2007
- Within-farm soil fertility gradients affect response of maize to fertiliser application in western Kenya. Nutrient Cycling in Agroecosystems. 76:171-182. 2007
- Niche-based assessment of contributions of legumes to the nitrogen economy of Western Kenya smallholder farms. Plant and Soil. 292:119-135. 2007
- A model for promoting a versatile but yet minor crop : Soybean in the farming systems of Kenya 2007
- Balanced Nutrient Management System Technologies In The Northern Guinea Savanna Of Nigeria: Validation And Perspective 2007
- Changes in Soil Organic Matter as Influenced by Organic Residue Management Regimes in Selected Experiments in Kenya 2007
- Effects of organic and mineral sources of nutrients on maize yields in three districts of central Kenya 2007
- Heterogeneity of crop productivity and resource use efficiency within smallholder Kenyan farms: Soil fertility gradients or management intensity gradients?. Agricultural Systems. 94:376-390. 2007
- Integrated Soil Fertility Management and Poverty Traps in Western Kenya 2007
- Integrated Soil Fertility Management: Use of NUTMON to Quantify Nutrient Flows in Farming Systems in Central Kenya 2007
- Optimising crop productivity in legume-cereal rotations through nitrogen and phosphorus management in western Kenya 2007
- Participatory Diagnosis in the Eastern Drylands of Kenya: Are Farmers aware of their Soil Fertility Status? 2007
- Soil climate and decomposer activity in sub-Saharan Africa estimated from standard weather station data: A simple climate index for soil carbon balance calculations. AMBIO. 36:379-386. 2007
- The Resources-to-Consumption System: A Framework for Linking Soil Fertility Management Innovations to Market Opportunities 2007
- Popular myths around soil fertility management in sub-Saharan Africa. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 116:34-46. 2006
- A model for promoting a versatile crop that has remained minor: the case of soybean in Kenya 2006
- Exploring diversity of crop and soil management within smallholder African farms: A dynamic model for simulation of N balances and use efficiencies at field scale. Agricultural Systems. 91:71-101. 2006
- Socio-ecological niche: a conceptual framework for integration of legumes in smallholder farming systems. International Journal of Agricultural Sustainability. 4:79-93. 2006
- Soybean: a new role in western Kenya 2006
- The role of bananas in Eastern DRCongo 2006
- Un renouveau pour le soja dans l ouest du Kenya 2006
- Decomposition and Mineralization of Organic Residues Predicted Using Near Infrared Spectroscopy. Plant and Soil. 277:315-333. 2005
- Exploring diversity in soil fertility management of smallholder farms in western Kenya: II. Within-farm variability in resource allocation, nutrient flows and soil fertility status. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 110:166-184. 2005
- Laboratory Validation of a Resource Quality‐Based Conceptual Framework for Organic Matter Management. Soil Science Society of America Journal. 69:1135-1145. 2005
- Estimating yields of tropical maize genotypes from non-destructive, on-farm plant morphological measurements. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 105:213-220. 2005
- Exploring diversity in soil fertility management of smallholder farms in western Kenya - I. Heterogeneity at region and farm scale. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 110:149-165. 2005
- Senna siamea trees recycle Ca from a Ca-rich subsoil and increase the topsoil pH in agroforestry systems in the West African derived savanna zone. Plant and Soil. 269:285-296. 2005
- Long-term soil organic carbon dynamics in a subhumid tropical climate: 13C data in mixed C3/C4 cropping and modeling with ROTHC. Soil Biology & Biochemistry. 36:1739-1750. 2004
- A New Method for the Simultaneous Measurement of pH‐Dependent Cation Exchange Capacity and pH Buffering Capacity. Soil Science Society of America Journal. 68:1578-1585. 2004
- The distribution of phosphorus fractions and desorption characteristics of some soils in the moist savanna zone of West Africa. Nutrient Cycling in Agroecosystems. 69:127-141. 2004
- Impact of residue characteristics on phosphorus availability in West African moist savanna soils. Biology and Fertility of Soils. 39:422-428. 2004
- Assessment of labile phosphorus fractions and adsorption characteristics in relation to soil properties of West African savanna soils. AGRICULTURE ECOSYSTEMS & ENVIRONMENT. 100:285-294. 2003
- Cation exchange capacities of soil organic matter fractions in a Ferric Lixisol with different organic matter inputs. Agriculture, Ecosystems & Environment. 100:161-171. 2003
- Sustainable resource management coupled to resilient germplasm to provide new intensive cereal-grain-legume-livestock systems in the dry savanna.. Agriculture, Ecosystems & Environment. 100:305-314. 2003
- Rapid characterization of Organic Resource Quality for Soil and Livestock Management in Tropical Agroecosystems Using Near Infrared Spectroscopy.. Agronomy Journal. 95:1314-1322. 2003
- Prospects for integrated soil fertility management using organic and inorganic inputs: evidence from smallholder African agricultural systems. Food Policy. 28:365-378. 2003
- Biological nitrogen fixation: A key input to integrated soil fertility management in the tropics 2003
- Chemical properties and soil organic matter assessment under fallow systems in the forest margins benchmark. Soil Biology & Biochemistry. 34:757-765. 2002
- The contribution of nitrogen by promiscuous soybeans to maize based cropping the moist savanna of Nigeria. Plant and Soil. 241:223-231. 2002
- Cowpea rotation as a resource management technology for cereal-based systems in the savannas of West Africa 2002
- Fertility status of soils of the derived savanna and northern guinea savanna and response to major plant nutrients, as influenced by soil type and land use management. Nutrient Cycling in Agroecosystems. 62:139-150. 2002
- Options for increasing P availability from low reactive rock phosphate 2002
- Root distribution of Senna siamea grown on a series of derived-savanna-zone soils in Togo, West Africa. Agroforestry Systems. 54:1-12. 2002
- Maize Yield as Affected by Organic Inputs and Urea in the West African Moist Savanna. Agronomy Journal. 93:1191-1199. 2001
- Temporal variations in plant δ13C values and implications for using the 13C technique in long-term soil organic matter studies. Soil Biology & Biochemistry. 33:1245-1251. 2001
- Fertiliser use and definition of farmer domains for impact-oriented research in the northern Guinea savanna of Nigeria. Nutrient Cycling in Agroecosystems. 59:129-141. 2001
- Alley cropping with Senna siamea in South-western Nigeria : I . Recovery of 15N labeled urea by the alley cropping system. Plant and Soil. 231:187-199. 2001
- Alley cropping with Senna siamea in South-western Nigeria: II. Dry matter, total N, and urea-derived N dynamics of the Senna and maize roots. Plant and Soil. 231:201-210. 2001
- Assessment of soil factors limiting growth and establishment of Mucuna in farmers' fields in the derived savanna of the Benin Republic. Biology and Fertility of Soils. 33:416-422. 2001
- Combined application of organic matter and fertilizer 2001
- Leaf quality of selected hedgerow species at two canopy ages in the derived savanna zone of West Africa. Agroforestry Systems. 53:21-30. 2001
- Nitrogen contribution of promiscuos soybeans in maize-based cropping systems 2001
- Nitrogen contribution of promiscuous soybeans in maize-based cropping systems 2001
- Nitrogen management in 'adequate' input maize-based agriculture in the derived savanna benchmark zone of Benin Republic. Plant and Soil. 228:61-71. 2001
- Soil Organic Matter and Soil Fertility 2001
- Sustaining Soil Fertility in West Africa in the Face of Rapidly Increasing Pressure for Agricultural Intensification 2001
- Utilization of rock phosphate by crops on a representative toposequence in the Northern Guinea savanna zone of Nigeria: response by Mucuna pruriens, Lablab purpureus and maize. Soil Biology & Biochemistry. 32:2063-2077. 2000
- Utilization of rock phosphate by crops on a representative toposequence in the Northern Guinea savanna zone of Nigeria: response by maize to previous herbaceous legume cropping and rock phosphate treatments. Soil Biology & Biochemistry. 32:2079-2090. 2000
- Response of Mucuna pruriens to symbiotic nitrogen fixation by rhizobia following inoculation in farmers' fields in the derived savanna of Benin. Biology and Fertility of Soils. 30:558-565. 2000
- Charge characteristics of soil organic matter fractions in a Ferric Lixisol under some multipurpose trees. Agroforestry Systems. 48:169-188. 2000
- Evaluation of symbiotic dinitrogen inputs of herbaceous legumes into tropical cover-crop systems. Biology and Fertility of Soils. 32:234-242. 2000
- Influence of phytoparasitic nematodes on symbiotic N2 fixation in tropical herbaceous legume cover crops. Biology and Fertility of Soils. 31:254-260. 2000
- Nitrogen and phosphorus uptake by maize as affected by particulate organic matter quality, soil characteristics, and land-use history for soils from West African moist savanna zone. Biology and Fertility of Soils. 30:440-449. 2000
- Nitrogen and phosphorus uptake by maize as affected by particulate organic matter quality, soil characteristics, and land-use history for soils from the West African moist savanna zone 2000
- Nitrogen contributions from decomposing cover crop residues to maize in a tropical derived savanna.. Nutrient Cycling in Agroecosystems. 57:131-140. 2000
- Transformations and recovery of residue and fertilizer nitrogen-15 in a sandy Lixisol of West Africa. Biology and Fertility of Soils. 31:261-269. 2000
- Utilization of rock phosphate by crops on a representative toposequence in the northern Guinea savanna zone of Nigeria: response by maize to previous herbaceous legume cropping and rock phospate treatments 2000
- Evaluation of methods for measuring microbial biomass C and N and relationships between microbial biomass and soil organic matter particle size classes in West-African soils. Soil Biology & Biochemistry. 31:1071-1082. 1999
- Alley cropping in the moist savanna of West Africa II. Impact on soil productivity in a north-to-south transect in Togo 1999
- Alley cropping in the moist savanna of West Africa III. Soil organic matter fractionation and soil productivity 1999
- Evaluation of methods for measuring microbial biomass C and N and their relationship with soil organic matter particle size classes for soils from the West-African moist savanna zone 1999
- Alley cropping in the moist savanna of West-Africa : II. Impact on soil productivity in a North-to-South transect in Togo. Agroforestry Systems. 42:229-244. 1998
- Alley cropping in the moist savanna of West-Africa. III. Soil organic matter fractionation and soil productivity. Agroforestry Systems. 42:245-264. 1998
- Mineral N dynamics in bare and cropped Leucaena leucocephala and Dactyladenia barteri alley cropping systems after the addition of 15N‐labelled leaf residues. European Journal of Soil Science. 49:417-425. 1998
- Spatial and temporal gradients of earthworm casting activity in alley cropping systems. Agroforestry Systems. 41:127-137. 1998
- Alley cropping in the moist savanna of West-Africa: I. Restoration and maintenance of soil fertility on ’terre de barre‘ soils in Bénin Republic. Agroforestry Systems. 42:213-227. 1998
- Mineral N dynamics in bare and cropped Leucaena leucocephala and Dactyladenia barteri alley cropping systems after the addition of 15N-labelled leaf residues 1998
- Recovery of Leucaena and Dactyladenia Residue Nitrogen-15 in Alley Cropping Systems. Soil Science Society of America Journal. 62:454-460. 1998
- Soil organic matter dynamics after addition of nitrogen-15-labeled Leucaena and Dactyladenia residues. Soil Science Society of America Journal. 62:461-466. 1998
- Decomposition of four Leucaena and Senna prunings in alley cropping systems under sub-humid tropical conditions: The process and its modifiers. Soil Biology & Biochemistry. 29:131-137. 1997
- A comparison of the contributions of clay, silt and organic matter to the effective CEC of soils of sub-Saharan Africa 1997
- A comparison of the contributions of clay, silt, and organic matter to the effective CEC of soils of subSaharan Africa. SOIL SCIENCE. 162:785-794. 1997
- Residue quality and decomposition: An unsteady relationship? 1997
- Evaluation of symbiotic properties and nitrogen contribution of mucuna to maize grown in the derived savanna of West Africa. Plant and Soil. 179:119-129. 1996
- Impact of residue quality on the C and N mineralization of leaf and root residues of three agroforestry species. Plant and Soil. 183:221-231. 1996
- Management of biological N2 fixation in alley cropping systems: Estimation and contribution to N balance. Plant and Soil. 174:119-141. 1995
- Alley farming research on high base status soils 1995
- Decomposition and nitrogen mineralization of prunings of different quality 1993
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- Integrated systems research for sustainable intensification of smallholder agriculture 2017
- Putting biological nitrogen fixation to work for smallholder farmers in Africa: the N2Africa project example: proceeding/poster 2017
- Yield responses in cassava - maize intercropping across diverse environments in southern Nigeria: proceeding/poster 2017
- Improving the speed of adoption of agricultural technologies and farm performance through farmer groups: evidence from the Great Lakes Region of Africa 2016
- Overcoming challenges for crops, people and policies in Central Africa: the story of CIALCA stakeholder engagement 2016
- Baseline report of the humidtropics program for Nigeria and Cameroon 2015
- Managing Soil Heterogeneity in Smallholder African Landscapes Requires a New Form of Precision Agriculture 2015
- Worldwide contrast in application of bio-fertilizers for sustainable agriculture: lessons for sub-Saharan Africa 2015
- Effect of Delayed Cassava Planting on Yields and Economic Returns of a Cassava-Groundnut Intercrop in the Democratic Republic of Congo 2014
- Effect of banana leaf pruning on banana and legume yield under intercropping in farmers fields in eastern Democratic Republic of Congo 2014
- Agricultural technology diffusion and adoption in banana- and legume-based systems of central Africa 2013
- Agro-ecological intensification of farming systems in the east and central African highlands 2013
- An analysis of the determinants of household level production and marketing of beans in Eastern Congo 2013
- Impact of interventions by Consortium for Improving Agriculture-based Livelihoods in Central Africa (CIALCA) on food and nutrition security of farmer households 2013
- Impact of interventions by consortium for improving agriculture-based livelihoohds in Central Africa (CIALCA) on food and nutrition security of farmer households 2013
- Indigenous arbuscular mycorrhizal fungi and growth of tissue-cultured banana plantlets under nursery and field conditions in Rwanda 2013
- Effect of banana leaf pruning on banana and bean yield in an intercropping system in Eastern Democratic Republic of Congo 2012
- CIALCA livelihood baseline survey report: technical report, No. 17 2011
- Strides from the heart of Africa 2011
- Arbuscular mycorrhizal fungi (AMF) in the rhizosphere of bananas systems and growth of tissue culture bananas 2010
- Integrated soil fertility management: operational definition and consequences for implementation and dissemination. Proceedings of the 19th World Congress of Soil Science: Soil solutions for a changing world 2010
- Integrated assessment of nutrient management options in smallholder farming systems: the NUANCES framework 2009
- Integrated soil fertility management in cassava-legume systems 2009
- Bridging the gap between farmers and researchers through collaborative experimentation: cost and labour reduction in soybean production in South-Nyanza, Kenya 2008
- Residue quality does not influence C and N stabilization 2008
- Restoration of terre de barre fertility using pigeonpea grown in rotation or intercropping with maize in the derived savanna of Benin 2008
- CIALCA improving livelihoods: pulling together for Central Africa 2006
- Soja: um novo papel no Quénia Ocidental 2006
- Banana inputs, production, and marketing in Kenya and Uganda 2004
- Chemical characterisation of a standard set of organic materials 2004
- Impact of residue characteristics on phosphorus availability in West African moist savanna soils 2004
- The distribution of phosphorus fractions and desorption characteristics of some soils in the moist savanna zone of West Africa 2004
- The multiple roles of organic resources in implementing integrated soil fertility management strategies 2004
- Use of mineral and organic inputs to increase land productivity and sustainability with special reference to the drylands of West Africa 2004
- Amélioration de la gestion des sols par l'introduction de légumineuses dans les systèmes céréaliers des savannes africaines 2003
- Balanced nutrient management systems for cropping systems in the tropics: from concept to practice 2003
- Evaluating options for soil organic carbon maintenance under intensive cropping in the West African savanna using the Rothamsted Carbon (RothC) model 2003
- Fertility status of soils of the derived savanna and northern guinea savanna benchmarks and response to major plant nutrients, as influenced by soil type and land use management 2002
- Gaseous N2O fluxes in tropical agriculture-effect of fertilizer and incorporated organic matter in soils of the derived savanna zone of Nigeria 2002
- Direct interactions between N fertilizer and organic matter: evidence from trials with 15N-labeled fertilizer 2001
- On-farm evaluation of the contribution of sole and mixed applications of organic matter and urea to maize grain production in the savanna 2001
- Options for increasing P availability from low creative rock phosphate 2001
- Options for soil organic carbon maintenance under intensive cropping in the West African savanna 2001
- Temporal variations in plant delta 13C values and implications for using the 13C technique in long-term soil organic matter studies 2001
- Charge characteristics of soil organic matter fractions in a Ferric Lixisol under some multi-purpose trees 2000
- Nitrogen contributions from decomposing cover crop residues to maize in a tropical derived savanna 2000
- Recent developments in soil fertility management of maize-based systems: the role of legumes in N and P nutrition of maize in the moist savanna zone of West Africa 2000
- Symbiotic nitrogen fixation response of Mucuna as affected by rhizobial inoculation in farmers' fields in the derived savanna of Benin 2000
- Utilization of rock phosphate by crops on a representative toposequence in the northern Guinea savanna zone of Nigeria: response by Mucuna pruriens, Lablab purpureus, and maize 2000
- Residue fractionation and decomposition: the significance of the active fraction 1994
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editorial article
- Response to Sommer et al. (2014) "Fertilizer use is not required as a fourth principle to define Conservation Agriculture. Field Crops Research. 169:149-149. 2014
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- Review of solar dryers for agricultural products in Asia and Africa: An innovation landscape approach.. Journal of Environmental Management. 110730. 2020
- Farmer adoption of plot- and farm-level natural resource management practices: Between rhetoric and reality. GLOBAL FOOD SECURITY-AGRICULTURE POLICY ECONOMICS AND ENVIRONMENT. 101-104. 2019
- Innovative technologies to manage aflatoxins in foods and feeds and the profitability of application - A review.. Food Control. 127-138. 2017
- Mycotoxins in Sub-Saharan Africa: Present situation, socio-economic impact, awareness, and outlook. Food Control. 110-122. 2017
- Beyond conservation agriculture. Frontiers in Plant Science. 870-870. 2015
- Does the combined application of organic and mineral nutrient sources influence maize productivity? a meta analysis. Plant and Soil. 1-30. 2011