Abe S S, Masunaga T, Yamamoto S, Honna T, Wakatsuki T. 2006. Comprehensive assessment of the clay mineralogical composition of lowland soils in West Africa. Soil Sci Plant Nutr, 52: 479–488.Asubonteng O K. 2001. Characterization and evaluation of inland valley watersheds for sustainable agricultural production: Case study of semi-deciduous forest zone in the Ashanti region of Ghana. Tropics, 10(4): 539–554. Balasubramanian V, Sie M, Hijmans R J, Otsuka K. 2007. Increasing rice production in sub-Saharan Africa: Challenges and opportunities. Adv Agron, 94: 55–133.Becker M, Johnson D E, Wopereis M C S, Sow A. 2003. Rice yield gaps in irrigated systems along an agro-ecological gradient in West Africa. J Plant Nutr Soil Sci, 166: 61–67.Becker M, Johnson D E. 2001. Cropping intensity and rainfall effects on upland rice yield and sustainability in West Africa. Nutr Cycl Agroecosyt, 59: 107–117. Chapman G P. 2002. The green revolution. In: Desai B, Potter R B. The Companion to Development Studies. London: Arnold, 155–159.Evenson R E, Gollin D. 2003. Assessing the impact of the Green Revolution, 1960 to 2000. Science, 300: 758–762.Fu R H Y, Abe S S, Wakatsuki T, Maruyama M. 2001. Traditional farmer-managed irrigation system in central Nigeria. Jpn Agric Res Qua, 44(1): 53–60.Hirose H, Wakatsuki T. 2002. Restoration of Inland Valley Ecosystems in West Africa. Tokyo: Norin Tokei Kyokai. Kyuma K, Saleh A, Subagjo H, Masunaga T, Wakatsuki T. 2006a. Effect of green revolution technology from 1970 to 2003 on sawah soil properties in Java, Indonesia: I. Carbon and nitrogen distribution under different land management and soil types. Soil Sci Plant Nutr, 52(5): 634–644.Kyuma K, Saleh A, Subagjo H, Masunaga T, Wakatsuki T. 2006b. Effect of green revolution technology from 1970 to 2003 on sawah soil properties in Java, Indonesia: II. Changes in the chemical properties of soils. Soil Sci Plant Nutr, 52(5): 645–653.Oladele O I, Wakatsuki T. 2009. Sawah rice production technology: Innovative land and water use in Nigeria and Ghana for sustainable agriculture. In: Proceedings of the XXXIII CIOSTA - CIGR V Conference: Technology and Management to Ensure Sustainable Agriculture, Agro-systems, Forestry and Safety. 17-19 June 2009. Reggio Calabria, Italy: 1765–1770.Otsuka K, Kalirajan K P. 2006. Rice green revolution in Asia and its transferability to Africa: An introduction. Dev Econ, 44: 107–122.Sanchez P A. 2002. Soil fertility and hunger in Africa. Science, 295: 2019–2020.Sanchez P A, Swaminathan M S. 2005. Cutting world hunger in half. Science, 307: 357–359.Tabuchi T, Hasegawa S. 1995. Paddy Fields in the World. Tokyo: The Japanese Society of Irrigation, Drainage and Reclamation Engineering: 353. von Braun J. 2009. Food-security risks must be comprehensively addressed. In: IFPRI 2008-2009 Annual Report Essay. Washington DC: International Food Policy Research Institute.Wakatsuki T, Otoo E, Andah W E I, Cobbina J, Buri M M, Kubota D. 2001. Integrated watershed management of inland valley in Ghana and West Africa: Ecotechnology approach. In: Final Report on JICA/CRI Joint Study Project. CRI, Kumasi, Ghana and JICA, Tokyo: 337.Wakatsuki T, Masuanga T. 2005. Ecological engineering for sustainable food production and the restoration of degraded watersheds in tropics of low pH soils: Focus on West Africa. Soil Sci Plant Nutr, 51: 629–636.Wakatsuki T, Buri M M, Fashola O O. 2005. Ecological engineering for sustainable rice production and the restoration of degraded watersheds in West Africa. In: Toriyama, K, Heong K L, Hardey B. Rice is Life: Scientific Perspectives for the 21st Century. Tsukuba: IRRI, JIRCAS, NARO, NIAS, NIAES, NIRE, APO, MAFF: 363–366. Wakatsuki T, Buri M M, Oladele O I. 2009. West African rice green revolution by sawah eco-technology and the creation of Satoyama systems. In: Kyoto Working Papers on Area Studies No. 63, JSPS Global COE Program Series 61. Insearch of Sustainable Humanosphere in Asia and Africa: 30. WARDA. 2008. Africa Rice Trend in 2007. Cotonou, Benin: Africa Rice Center (WARDA).Windmeijer P N, Andriesse W. 1993. Inland Valley in West Africa: An Agro-ecological Characterization of Rice-growing Environment. ILRI Publ. No. 52. Wageningen: International Institute for Land Reclamation and Improvement (ILRI). |