Viewpoint: Toward a sustainable Green Revolution in sub-Saharan Africa: The case of maize and rice

IF 6.8 1区 经济学 Q1 AGRICULTURAL ECONOMICS & POLICY Food Policy Pub Date : 2024-11-01 DOI:10.1016/j.foodpol.2024.102762
Keijiro Otsuka , T.S. Jayne , Yukichi Mano , Kazushi Takahashi
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Abstract

This Viewpoint article synthesizes seminal research from multiple disciplines in a virtual special collection (VSC) of Elsevier articles to highlight critical remaining steps to achieve a sustainable Green Revolution (SGR) in Africa. It is now widely recognized that the combined use of improved seeds and inorganic fertilizers – which were critical to the Asian Green Revolution – are necessary but insufficient conditions for African farmers to sustainably raise the productivity of their cereal crops. We highlight three key conclusions emerging from the VSC. First, achieving a maize SGR in sub-Saharan Africa (SSA) will require the development of site-specific soil management practices that can be consistently applied by highly resource-constrained farmers. This condition is far from being achieved in most of SSA. Second, the challenges to achieving a rice SGR are different: Best management practices are largely established and effective. Rice yields have already increased dramatically in parts of SSA where Asian-style seed-fertilizer technology and cultivation practices have been adopted. Therefore, the priority for enhancing rice productivity in SSA is to promote wider adoption of these established practices in rice-producing areas. Third, overcoming these challenges for both maize and rice requires strong adaptive agricultural research, development, and extension organizations on the ground. Many African countries currently lack these organizations to carry out the core activities required to achieve a SGR; therefore, building institutional capacity for national and regional agricultural research, extension, and policy analysis is a fundamental component of an effective SGR strategy.
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观点:在撒哈拉以南非洲实现可持续的绿色革命:玉米和水稻案例
这篇观点文章综合了爱思唯尔虚拟特辑(VSC)中多个学科的开创性研究成果,强调了在非洲实现可持续绿色革命(SGR)的关键步骤。现在人们普遍认识到,改良种子和无机肥料的结合使用--对亚洲绿色革命至关重要--是非洲农民可持续提高谷类作物生产率的必要条件,但还不够。我们着重强调虚拟粮食安全中心得出的三个关键结论。首先,在撒哈拉以南非洲地区(SSA)要实现玉米的可持续增产目标,就必须制定针对具体地点的土壤管理方法,使资源高度紧张的农民能够持续应用这些方法。撒哈拉以南非洲大部分地区还远未达到这一条件。其次,实现水稻 SGR 所面临的挑战不同:最佳管理方法已基本确立且行之有效。在撒哈拉以南非洲部分地区,水稻产量已经大幅提高,这些地区采用了亚洲式的种子-肥料技术和种植方法。因此,提高撒哈拉以南非洲地区水稻产量的当务之急是在水稻产区更广泛地采用这些成熟的做法。第三,要克服玉米和水稻面临的这些挑战,需要在当地建立强有力的适应性农业研究、开发和推广组织。许多非洲国家目前缺乏这些组织,无法开展实现 SGR 所需的核心活动;因此,建设国家和区域农业研究、推广和政策分析的机构能力是有效 SGR 战略的基本组成部分。
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来源期刊
Food Policy
Food Policy 管理科学-农业经济与政策
CiteScore
11.40
自引率
4.60%
发文量
128
审稿时长
62 days
期刊介绍: Food Policy is a multidisciplinary journal publishing original research and novel evidence on issues in the formulation, implementation, and evaluation of policies for the food sector in developing, transition, and advanced economies. Our main focus is on the economic and social aspect of food policy, and we prioritize empirical studies informing international food policy debates. Provided that articles make a clear and explicit contribution to food policy debates of international interest, we consider papers from any of the social sciences. Papers from other disciplines (e.g., law) will be considered only if they provide a key policy contribution, and are written in a style which is accessible to a social science readership.
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