Challenges and Opportunities for Agricultural Intensification of the Humid Highland Systems of Sub-Saharan Africa

<p>Theme 1 – System characterization<br>Bridging the soil map of Rwanda with the ‘farmer’s mental soil map’ for an effective Integrated and Participatory Watershed Management research model; P.N. Rushemuka, J. Bizimana, J.J.M. Mbonigaba and L. Bock<br>Intensification of crop–livestock farming systems in East Africa: A comparison of selected sites in the highlands of Ethiopia and Kenya; M. Kindu, A.J. Duncan, D. Valbuena, B. Gérard, L. Dagnachew, B. Mesfin and J Gedion<br>Rapid assessment of potato productivity in Kigezi and Elgon Highlands in Uganda; G. Okoboi, I. Kashaija, R. Kakuhenzire, B. Lemaga and D. Tibanyendera<br>Farmers’ knowledge and perception of climbing beans-based cropping systems in Rwanda; V. Ruganzu, J. Mutware, B. Uwumukiza, N.L. Nabahungu, I. Nkurunziza and A.R. Cyamweshi<br>Securing crop phosphorus availability in the humid tropics: Alternative sources and improved management options - A review; A.S. Jeng<br>Theme 2 – System components<br>A decade of agricultural research in Rwanda: Achievements and the way forward; D. Gahakwa, T. Asiimwe, N.L. Nabahungu, M. Mutimura, T. Isibo, A. Mutaganda and C. Ngaboyisonga<br>Do commercial biological and chemical products increase crop yields and economic returns under smallholder farmer conditions? J. Jefwa<br>Enhanced utilization of biotechnology research and development innovations in eastern and central Africa for agro-ecological intensification; C.W. Masiga<br>Investing in Land and Water Management Practices in the Ethiopian Highlands: Short- or Long-Term Benefits? Y.G. Selassie and T. Amede<br>Yield responses of cowpea (Vigna unguiculata) varieties to phosphorus fertilizer application across a soil fertility gradient in western Kenyan highlands; S.N. Odundo, O.J. Ojiem, J.R. Okalebo, C.O. Othieno, J.G. Lauren and B.A. Medvecky<br />Innovations to overcome staking challenges to climbing beans production by smallholders in Rwanda; A. Musoni, J. Kayumba, L. Butare, F. Mukamuhirwa, E. Murwanashyaka, D. Mukankubana, J.D. Kelly, J. Ininda and D. Gahakwa<br>Crop–livestock interaction for improved productivity: Effect of selected varieties of field pea (Pisum sativum L.) on grain and straw parameters; G.G. Yetimwork, E.G. Awet and M. Solomon<br>From standards to practices: The intensive and improved rice (SRI and SRA) systems in the Madagascar Highlands; G. Serpantié and M. Rakotondramanana<br>Identification of elite, high yielding and stable maize cultivars for Rwandan mid-altitude environments; C. Ngaboyisonga, F. Nizeyimana, A. Nyombayire, M.K. Gafishi, J. Ininda and D. Gahakwa<br>Determination of appropriate rate and mode of lime application on acid soils of western Kenya: targeting small scale farmers; J.K. Kiplagat, J.R. Okalebo, C.K. Serrem, D.S. Mbakaya and B. Jama<br>Assessment of fertilizer efficiency in Walungu weathered soil on maize yield; M.E. Bagula, P. Pypers and N.G. Mushagalusa<br>Improvement of sweetpotato (Ipomoea batatas (L.) Lam) production with fertilizer and organic inputs in Rwanda; M. Janssens, V. Rutunga, J. Mukamugenga, S. Mukantagengwa and R. Marijnissen<br>Evaluation of sweetpotato varieties for the potential of dual-purpose in different agroecological zones of Kenya; B.A. Lukuyu, J. Kinyua, S. Agili, C.K. Gachuiri and J. Low<br>Theme 3 – Drivers and determinants for adoption<br>Livelihoods heterogeneity and water management in Malawi: policy implications for irrigation development; T.J. Kopa-Kamanga, D.J. Kjosavik and P.S. Kamanga<br>Access to subsidized certified improved rice seed and poverty reduction: evidence from rice farming households in Nigeria; B.A. Awotide, T.T. Awoyemi and A. Diagne<br>Factors influencing the adoption of improved rice varieties in Rwanda: An application of the Conditional Logit Model (CLM); J.S. Mutware and K. Burger<br />Assessing the influence of farmers’ field schools and market links on investments in soil fertility management under potato production in Uganda; R. Muzira, B. Vanlauwe, T. Basamba, S.M. Rwakaikara and C. Wanjiku<br>Bean utilization and commercialization in Great Lakes region of Central Africa: The case of smallholder farmers in Burundi; J. Ochieng, M.C. Niyuhire, C. Ruraduma, E. Birachi and E. Ouma<br>Enhancing farmers’ access to quality planting materials through community-based seed and seedling systems: Experiences from the Western Highlands of Cameroon; B. Takoutsing, A. Degrande, Z. Tchoundjeu, E. Assah and A. Tsobeng<br>Returns to production of common bean, soybean, and groundnut in Rwanda; J.R. Mugabo, J. Chianu, E. Tollens and B. Vanlauwe<br>Theme 4- Knowledge-intensive approaches<br>Beyond the pilot sites: Can knowledge-intensive technologies diffuse spontaneously? E. Kiptot<br>Agricultural innovations that increase productivity and generates incomes: Lessons on identification and testing processes in Rwandan agricultural Innovation Platforms; C. Ngaboyisonga, J. Mugabo, B.S. Musana, M.M. Tenywa, C. Wanjiku, J. Mugabe, F. Murorunkwere, S. Ntizo, B. Nyamulinda, J. Gafaranga, J. Tuyisenge, S.O. Nyamwaro and R. Buruchara<br>ISFM adaptation trials: farmer-to farmer facilitation, farmer-led data collection, technology learning and uptake; B.K. Paul, P. Pypers, J.M. Sanginga, F. Bafunyembaka and B. Vanlauwe</p>