Sustainable Intensification: Increasing Productivity in African Food and Agricultural Systems By: Jules Pretty, Camilla Toulmin and Stella Williams

Continued population growth, rapidly changing consumption patterns and the impacts of climate change and environmental degradation are driving limited resources of food, energy, water and materials towards critical thresholds worldwide. These pressures are likely to be substantial across Africa, where countries will have to find innovative ways to boost crop and livestock production to avoid becoming more reliant on imports and food aid. Sustainable agricultural intensification - producing more output from the same area of land while reducing the negative environmental impacts - represents a solution for millions of African farmers.

This volume presents the lessons learned from 40 sustainable agricultural intensification programmes in 20 countries across Africa, commissioned as part of the UK Government's Foresight project. Through detailed case studies, the authors of each chapter examine how to develop productive and sustainable agricultural systems and how to scale up these systems to reach many more millions of people in the future. Themes covered include crop improvements, agroforestry and soil conservation, conservation agriculture, integrated pest management, horticulture, livestock and fodder crops, aquaculture, and novel policies and partnerships.

1. Editorial 2. Overview- Sustainable intensification in African agriculture Jules Pretty, Camilla Toulmin and Stella Williams 3. Quncho: the first most popular tefvariety in Ethiopia Kebebew Assefa, Sherif Aliye, Getachew Belay, Gizaw Metaferia, Hailu Tefera and Mark E. Sorrells 4. The Ghana Grains Partnership Patrick Guyver and Mavis MacCarthy 5. Orange-fleshed sweet potatoes for food, health and wealth in Uganda R.O.M. Mwanga and G. Ssemakula 6. Soyabeans and sustainable agriculture in southern Africa Ken E. Giller, M.S. Murwira, D.K.C. Dhliwayo, P.L. Mafongoya and S. Mpepereki 7. Growing sustainable tea on Kenyan smallholder farms Zakaria Mitei 8. The System of Rice Intensification (SRI) as a sustainable agricultural innovation: introducing, adapting and scaling up sri practices in the Timbuktu region of Mali Erika Styger, Goumar Aboubacrine, Malick Ag Attaher and Norman Uphoff 9. Revival of cassava production in the Nakasongola District, Uganda R.L. Roothaert and R. Magado 10. Addressing the challenges of agricultural service provision: the case of Oxfam's strategic cotton programme in Mali Aboubacar Traore and Sam Bickersteth 11. Promoting smallholder seed enterprises (SSE): quality seed production of rice, maize, sorghum and millet in northern Cameroon Robert G.Guei, and Abdoulaye Barra and Drissa Silue 12. Research, development and scaling up the adoption of fodder shrub innovations in East Africa Charles Wambugu, Frank Place and Steven Franzel 13. Trees, agroforestry and multifunctional agriculture in Cameroon E. K. Asaah, Z. Tchoundjeu, R. R. B. Leakey, B. Takousting, J. Njong and I. Edang 14. Using soil and water conservation techniques to rehabilitate degraded lands in northwestern Burkina Faso Hamado Sawadogo 15. Agricultural success from Africa: the case of fertilizer tree systems in southern Africa (Malawi, Tanzania, Mozambique, Zambia and Zimbabwe) O. C. Ajayi, F. Place, F. K. Akinnifesi and G. W. Sileshi 16. Harnessing sustainability, resilience and productivity through conservation agriculture: the case of Likoti in Lesotho Laura Silici, PalesaNdabe, Theodor Friedrich and Amir Kassam 17. Conservation Agriculture (CA) in Tanzania: the case of Mwangaza B CA Farmer Field School (FFS), Rhotia Village, Karatu District, Arusha Marietha Z Owenya, Wilfred L Mariki, Josef Kienzle, Theodor Friedrich and Amir Kassam 18. An African success: the case of conservation agriculture in Zimbabwe Lungowe Sepo Marongwe, Karsto Kwazira, Michael Jenrich, Christian Thierfelder, Amir Kassam and Theodor Friedrich 19. Push-pull technology: a conservation agriculture approach for integrated management of insect pests, weeds and soil health in Africa Zeyaur Khan, Charles Midega, Jimmy Pittchar, John Pickett and Toby Bruce 20. Sustainable crop production intensification in the Senegal and Niger River Basins of Francophone West Africa William Settle and Mohamed Hama Garba 21. On-farm biological control of the pearl millet head miner: realization of thirty-five years of unsteady progress in Mali, Burkina Faso and Niger William Payne, Hamado Tapsoba, Ibrahim B. Baoua, Ba N. Malick, Mamadou N'Diaye and Clementine Dabire-Binso 22. African indigenous vegetable enterprises and market access for small scale farmers in East Africa Gilbert Muhanji, Ralph Roothaert, Chris Webo and Mwangi Stanley 23. Merudairy goat and animal healthcare project Christie Peacock and Thomasine Hastings 24. Collective livestock research for sustainable disease management in Mali and Burkina Faso Sabine Liebenehm, Hippolyte Affognon and Hermann Waibel 25. The Rakai Chicken Model: an approach that has improved fortunes for Ugandan farmers R. Roothaert, S. Ssalongo and J. Fulgensio 26. The Malawi Agricultural Input Subsidy Programme: 2005/6 to 2008/9 Andrew Dorward and Ephraim Chirwa 27. Focal area approach: a participatory community planning approach to agricultural extension and market development in Kenya J. K. Kiara 28. Sharing ideas between cultures with videos Jeffery Bentley and Paul Van Mele 29. CARBAP and innovation on the plantain banana in West and Central Africa Kodjo Tomekpe and Jacky Ganry 30. The rise of peri-urban aquaculture in Nigeria James W. Miller and Tunde Atanda 31. From researcher to farmer: partnerships in integrated aquaculture - agriculture systems in Malawi, Ghana and Cameroon R. E. Brummett and D. M. Jamu

Jules Pretty is Pro-Vice-Chancellor at the University of Essex, and Professor of Environment and Society at the University of Essex, UK. His 16 books include This Luminous Coast (2011), The Earth Only Endures (2007), and Agri-Culture (2002). He is Chief Editor of the International Journal of Agricultural Sustainability and received an OBE in 2006 for services to sustainable agriculture, and an honorary degree from Ohio State University in 2009. Stella Williams is from Nigeria, and is a fisheries and agricultural economist with experitse in rural economic development. She has served on many international Boards where she ensures support for women and youth empowerment. She is an advocate for educational development across sub-Saharan Africa. Camilla Toulmin has studied land tenure, farming strategies and livelihood options in dryland Africa. An economist by training, she is Director of the IIED and a member of the UK government Foresight project.
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