<p><p><p>THEME 1: Constraints and Opportunities for the African Green Revolution</p><p>New Challenges and Opportunities for Integrated Soil Fertility Management in Africa; Meeting the Demands for Plant Nutrients for an African Green Revolution: The Role of Indigenous Agrominerals; The geological basis of farming in Africa; The Challenges in Accessing Agricultural Innovations by West African Family Farms: Institutional and Policy Implications; Achieving an African Green Revolution: A Perspective from an Agri-Input Supplier; The African Green Revolution and the Role of Partnerships in East Africa; Optimizing Agricultural Water Management for the Green Revolution in Africa; Ex-ante evaluation of the impact of a structural change in fertilizer procurement method in sub-Saharan Africa; Preparing Groups of Poor Farmers for Market Engagement: Five Key Skill Sets; Fertilizer microdosing and “Warrantage” or inventory credit system to improve food security and farmers’ income in West Africa; African Green Revolution requires a secure source of Phosphorus: A review of alternative sources and improved management options of phosphorus</p><p>THEME 2: Potential and feasibility of use of external input and improved soil and crop management to achieve the African Green Revolution</p><p>Soybean varieties, developed in lowland West Africa, retain their promiscuity and dual-purpose nature under highland conditions in Western Kenya; Long-term effect of continuous cropping of irrigated rice on soil and yield trends in the Sahel of West Africa; Conservation tillage, local organic resources and nitrogen fertilizer combinations affect maize productivity in Arid and Semi-Arid Lands in Kenya; Long-term land management effects on crop yields and soil properties in the sub-humid highlands of Kenya; Integrated management of fertilizers, weed and rice genotypes can improve rice productivity; Integrated soil fertility management for increased maize production in the degraded farmlands of the Guinea Savanna Zone of Ghana using devil-bean (Crotalaria retusa) and fertilizer nitrogen; Effect of organic inputs and mineral fertilizer on maize yield in a Ferrasol and a Nitisol soil in central Kenya; Effects of Conservation Tillage, Crop Residue and Cropping Systems on changes in Soil Organic Matter and Maize-Legume Production: A Case Study in Teso District; Benefits of integrated soil fertility and water management in semi-arid West Africa: an example study in Burkina Faso; Survival and Soil Nutrient Changes during Five Years Growth of Sixteen Faidherbia albida Provenances in Semi Arid Baringo District, Kenya; The “secret” behind the good performance of Tithonia Diversifolia on P availability as compared to other green manures; Biological nitrogen fixation potential by soybeans in two low-P soils of southern Cameroon; Roles for herbaceous and grain legumes, kraal manure and inorganic fertilizers for soil fertility management in eastern Uganda; The Effects Of Integration Of Organic And Inorganic Sources Of Nutrient On Maize Yield In Central Kenya; Forage Legume-Cereal Double Cropping in Bimodal Rainfall Highland Tropics: The Kenyan Case; Effects Of Conservation Tillage, Fertilizer Inputs And Cropping Systems On Soil Properties And Crop Yield In Western Kenya; Effect of manure application on soil nitrogen availability to intercropped sorghum and cowpea at three sites in eastern Kenya; The Effect Of Organic Based Nutrient Management Strategies On Soil Nutrient Availability And Maize Performance In Njoro, Kenya; Using forage legumes to improve soil fertility for enhanced grassland productivity of semi-arid rangelands of Kajiado District, Kenya; Potential of cowpea, pigeonpea and greengram to contribute nitrogen to maize in rotation on Ferralsol in Tanga – Tanzania; Model Validation through Long Term Promising Sustainable Maize/Pigeon Pea Residue Management in Malawi; Use of Tithonia biomass, Maize residues and Inoraganic phosphate on Climbing Bean yield and Soil properties in Rwanda; Potential of Increased Maize and Soybean Production in Uasin Gishu District, Kenya, Resulting from Soil Acidity Amendment using Minjingu Phosphate Rock and Agricultural Lime; Residual effects of contrasting organic residues on maize growth and phosphorus accumulation over four cropping cycles in savanna soils; Interactive effects of selected nutrient resources and tied-ridging on plant growth performance in a semi-arid smallholder farming environment in central Zimbabwe; 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; Innovations In Cassava Production For Food Security And Forest Conservation In Western Côte D’Ivoire; Promoting uses of indigenous phosphate rock for soil fertility recapitalization in the Sahel: state of the knowledge on the review of the rock phosphates of Burkina Faso; Selecting indigenous P solubilizing bacteria for cowpea and millet improvement in nutrient deficient acidic soils of southern Cameroon; Evaluation of Human Urine as a Source of Nitrogen in the Co-Composting of Pine Bark and Lawn Clippings; Extractable Bray-1 Phosphorus and Crop Yields as influenced by Addition of Phosphatic Fertilizers of Various Solubilities integrated with manure in an Acid Soil; Seedbed Types and Integrated Nutrient Management Options for Cowpea Production in the Southern Rangelands of Semi-Arid Eastern Kenya; Land and Water Management Research and Development in Arid And Semi-Arid Lands Of Kenya; Evaluation of establishment, biomass productivity and quality of improved fallow species in a ferralic arenosol at coastal region in Kenya; Assessment of potato bacterial wilt disease status in North Rift Valley of Kenya: A Survey; Soil fertility variability in relation to the yields of maize and soybean under intensifying cropping systems in the tropical savannas of north-eastern Nigeria; An evaluation of Lucerne varieties suitable for different agro ecological zones in Kenya; Water Harvesting And Integrated Nutrient Management Options For Maize-Cowpea Production In Semi-Arid Eastern Kenya; The potential of Ipomoea stenosiphon as a soil fertility ameliorant in the semi-arid tropics; Effect of Aluminium concentration and liming acid soils on the growth of selected maize cultivars grown on sandy soils in Southern Africa; The role of Biological Technologies in Land Quality Management: Drivers for Farmer’s Adoption in the Central Highlands of Kenya; Biophysical characterization of Oasis soils for efficient use of external inputs in Marsabit District: Their potentials and limitations; Multi-functional properties of mycorrhizal fungi for crop production: The case study of banana development and drought tolerance; Effect of Phosphorus Sources and Rates on Sugarcane Yield and Quality in Kibos, Nyando Sugar Zone; Natural and antropic determinants of soil carbon stocks in two agro-ecosystems in Burkina Faso; Integrated Soil Fertility Management Involving Promiscuous Dual-purpose Soybean and Upland NERICA Enhanced Rice Productivity in the Savannas; Nitrogen Use in Maize (Zea Mays) –Pigeon pea (Cajanus cajans) Intercrop in Semi- arid Conditions of Kenya; Nitrogen and phosphorus capture and recovery efficiencies, and crop responses to a range of soil fertility management strategies in sub-Saharan Africa; Greenhouse Evaluation Of Agronomic Effectiveness Of Unacidulated And Partially Acidulated Phosphate Rock From Kodjari And The Effect Of Mixed Crop On Plant P Nutrition; Effect Of Continuous Mineral And Organic Fertilizers Inputs And Plowing On Groundnut Yield And Soil Fertility In A Groundnut – Sorghum Rotation In Central Burkina Faso; Soil Inorganic N and N uptake by maize following application of legumes biomass, tithonia and manure, and inorganic fertilizer in central Kenya; Changes in δ<sup>15</sup>N and N nutrition in nodulated cowpea (Vigna unguiculata L. Walp.) and maize (Zea mays L.) grown in mixed culture with exogenous P supply; Cation flux in incubated plant residues and its effect on pH and plant residue alkalinity; Agronomic efficiency of human stool and urine on the production of maize and egg plant in Burkina Faso; Potential for Reuse of Human Urine in Peri-Urban Farming; Towards sustainable land use in Vertisols in Kenya: challenges and opportunities; Potential Nitrogen Contribution of Climbing Bean to Subsequent Maize Crop in Rotation in South Kivu Province of Democratic Republic of Congo; Investigation on the Germination of Zanthoxylum Gilletii Seeds (De Wild) Waterm (East African Satinwood); Combining ability for Grain Yield of Imidazolinone Resistant-maize inbred lines under Striga (Striga hermonthica) infestation; Identification of plant genetic resources with high potential contribution to the soil fertility enhancement in the Sahel with special interest in fallow vegetation; Within-farm variability in soil fertility management in smallholder farms of Kirege location, Central Highlands of Kenya; Residual Effects of Applied Phosphorus Fertilizer on Maize Grain Yield and Phosphorus Recovery from a Long-Term Trial in Western Kenya; Potential of combined effect of organic and inorganic fertilisers on crop productivity; Phenotypic Characterization Of Local Maize Landraces For Drought Tolerance In Kenya; Targeting resources within diverse, heterogeneous and dynamic farming systems: towards a ‘uniquely African green revolution; Exploring crop yield benefits of integrated water and nutrient management technologies in the Desert Margins of Africa: Experiences from semi-arid Zimbabwe; Population dynamics of mixed indigenous legume fallows and influence on subsequent maize following mineral P application in smallholder farming systems of Zimbabwe; Formulating crop management options for Africa’s drought-prone regions: Taking account of rainfall risk using modeling; Residue quality and N fertilizer do not influence aggregate stabilization of C and N in two tropical soils with contrasting texture; Interaction between Resource Quality, Aggregate Turnover, Carbon and Nitrogen Cycling in the Central Highlands of Kenya; Performances of Cotton-Maize Rotation system as Affected by Ploughing Frequency and Soil Fertility Management in Burkina Faso; Developing Standard Protocols for Soil Quality Monitoring and Assessment; Increasing productivity through maize-legume intercropping in Central Kenya; Contributions of cowpea and fallow to soil fertility improvement in the guinea savannah of West Africa.</p><p>THEME 3: Limitations to access and adoption of innovations by poor farmers</p><p>Some facts about fertilizer use in Africa: the case of smallholder and large scale farmers in Kenya; Farm input market system in Western Kenya: constraints, opportunities and policy implications; Gender differentials in adoption of soil fertility management technologies in Central Kenya; Enhancing Agricultural Production Potential through Nutrition and Good Health Practice: The Case of Suba District in Kenya; Linking policy, research, agribusiness and processing enterprise to develop Mungbean (Vigna radiata) production as export crop from Senegal River Valley; Prioritizing research efforts to increase on-farm income generation: the case of cassava-based farmers in peri-urban southern Cameroon; Policy framework for utilization and conservation of below-ground biodiversity in Kenya; Policy Issues Affecting Integrated Natural Resource Management and Utilization in Arid and Semi Arid Lands of Kenya; Stakeholder characterisation of the biophysical and socio-economic potential of the desert margins in Kenya; Community Soil Fertility Management in the Region of Gourma, Burkina Faso -West Africa; Understanding Cassava Yield Differences at Farm Level: Lessons for Research; Organic Matter Utilization And The Determinants Of Organic Manure Use By Farmers In The Guinea Savanna Zone Of Nigeria; Innovativeness Of Common Interest Groups In North Rift Kenya: A Case Of Trans Nzoia District; Economic analysis of improved potato technologies in Rwanda; Assessment of Occupational and Environmental Safety Concerns in Pesticide Use among Small-scale Farmers in Sagana, Central Highlands, Kenya; Variation in socio economic characteristics and natural resource management in communities with different potato market linkages in the highlands of southwestern Uganda; Crop Rotation Leguminous Crops as Soil Fertility Strategy in Pearl Millet Production Systems; Participatory variety selection of pulses under different soil and pest management practices in Kadoma District, Zimbabwe; Economic Returns Of The ‘Mbili’ Intercropping Compared To Conventional Systems In Western Kenya; Bio-Socio-Economic Factors Influencing Tree Production in South Eastern Drylands of Kenya; Economic Evaluation of the Contribution of Below Ground Biodiversity: Case Study of Biological Nitrogen Fixation by Rhizobia; Farmers’ Perceptions and its Influence on Uptake of Integrated Soil Nutrient Management Techniques: Evidence from western Kenya; Taking Soil Fertility Management Technologies to the Farmers’ Backyard: The Case of Farmer Field Schools in Western Kenya; Status And Trends Of Technological Changes Among Small Scale Farmers In Tanzania; The dilemma of using fertilizer to power the green revolution in Sub-Saharan Africa; Overcoming market constraint to pro-poor agricultural Growth in the Eastern of DR. Congo, South Kivu; Constraints in Chickpea Transportation in the Lake Zone of Tanzania</p><p>THEME 4: Innovation approaches and their scaling up/out in Africa</p><p>Micro-dosing as a pathway to Africa’s Green Revolution: Evidence from broad-scale on-farm trials;<sup> </sup>The Dryland Eco-Farm: a Potential Solution to the Main Constraints of Rain-Fed Agriculture in Africa’s Semi Arid Tropics; Effect of Zai soil and water conservation technique on water balance and the fate of nitrate from organic amendments applied: A case of degraded crusted soils in Niger; Counting eggs? Smallholder experiments and try-outs as success indicators of adoption of soil fertility technologies; Improving smallholder farmers’ access to information for enhanced decision making in natural resource management: Experiences from South Western Uganda;<sup> </sup>Market Access: Components, Interactions and Implications in Smallholder Agriculture In The Former Homeland Area Of South Africa; Improving African Agricultural Market and Rural Livelihood through Warrantage: Case Study of Jigawa State, Nigeria; The Desert Margins Programme Approaches in Upscaling Best-Bet Technologies in Arid and Semi-Arid Lands in Kenya; Soil organic inputs and water conservation practices are the keys of the sustainable farming systems in the sub-sahelian zone of Burkina Faso; Intercropping Grain Amaranth (Amaranthus Dubius) With Soybean (G. Max) For Sustainability And Improved Livelihoods In Western Kenya; Soil conservation in Nigeria: Assessment of past and present initiatives; Effect of farmer management strategies on spatial variability of soil fertility and crop nutrient uptake in contrasting agro-ecological zones in Zimbabwe; Empowering Farmers in Monitoring and Evaluation for Improved Livelihood: Case Study of Soil and Water Management in Central Kenya; Effectiveness Of “Prep-Pac” Soil Fertility Replenishment Product On Performance Of The Diversified Maize-Legume Intercrops In Western Kenya; Risk Preference And Optimal Crop Combinations For Small Holder Farmers In Umbumbulu District, South Africa: An Application Of Stochastic Linear Programming; Scaling Out Integrated Soil Nutrient and Water Management Technologies through Farmer Participatory Research: Experiences from Semi-Arid Central Zimbabwe; Reducing the Risk of Crop Failure for Smallholder Farmers in Africa through the Adoption of Conservation Agriculture; Dissemination Of Integrated Soil Fertility Management Technologies Using Participatory Approaches In The Central Highlands Of Kenya; Adoption Of Improved Varieties Of Maize And Cassava In Kilosa And Muheza Districts, Eastern Tanzania; The role of forest resources in the strategies of rural communities coping with the HIV/AIDS epidemic in sub Sahara Africa; Farmer managed natural regeneration in Niger: A key to environmental stability, agricultural intensification and diversification; Achieving a Green Revolution in Southern Africa: Role of Soil and Water Conservation in Enhancing Agricultural Productivity and Livelihoods in Semi-Arid Areas of Malawi; Managing Soil and Water through Community Tree Establishment and Management: A Case of Agabu and Kandota Villages in Ntcheu District, Malawi; Adoption and up scaling of water harvesting technologies among small scale farmers in Northern Kenya; Social and Economic Factors for the Adoption of Agroforesry Practices in Lake Victoria Catchment, Magu, Tanzania</p><p><p><p><p><p>