Materialization of West African Green Revolution through Sawah Based Eco-technology and Creation of African Adaptive Satoyama watershed Systems

在过去的50年里，非洲几乎所有的农业研究成果都不能规模化到农民田里。因此，绿色革命还没有实现。为了实现绿色革命，检验了以下两个假设：(1)在农民田里发展SAWH系统是应用科学技术的先决条件(SAWH假说1)；(2)特定地点的低地SAWH系统可以维持高于4t/ha的水稻产量(SAWH假说2)。为了证实这两个假设，开发了战略沙瓦生态技术集。这项技术使农民有可能开发他们自己的灌溉Sawah系统，并在三年内使用一台电动耕作者每季生产20-50吨稻田(相当于10,000-25,000美元)(3000-5,000美元)。这项技术已经在50个地点和100个哈恩加纳以及100个地点和200个哈恩尼日利亚进行了成功的测试。这项技术得到了世界银行和两国政府的积极评价，可以在成本方面大幅改革传统的基于官方发展援助的灌溉项目，成本不到10%，并通过内生发展实现可持续性。Goalis全国和撒哈拉以南非洲地区与JICA合作，扩大技术规模，实现绿色革命梦想。

Almost all agricultural research resultscould not scaleup to farmers 'fieldsduring last 50 yearsin Africa. Thus, the Green Revolution is yet to be realized. In order to realize the green revolution, following two hypotheses were tested, i. e., (1) the development of sawah systems atfarmers' fieldsis the prerequisite condition to applyscientifictechnologies(Sawah hypothesis 1), and (2) site-specific lowland sawahsystems can sustain rice yield higher than 4t/ha(Sawah hypothesis 2). In order toconfirm the two hypotheses, the strategicsawah ecotechnologyset wasdeveloped. The technologymakes possible farmersto develop their personal irrigated sawah systems and to produce20-50 tonsof paddies(equivalent to$ 10,000-25,000) per season using one powertiller($ 3000-5,000) within three years. The technology wassuccessfully testedat 50 sites and 100 hain Ghanaand 100 sites and 200 hain Nigeria. The technologywas positively evaluated by World Bank and the two governments, whichcan reformdramatically traditional ODA based irrigation projectsin terms of cost, less than 10%, and sustainability byendogenous development. Thegoalis nation-wide and Sub Saharan Africa wide scale up of the technology in collaboration with JICAto realize green revolution dream.