Frossard Emmanuel, Aighewi Beatrice A, Aké Sévérin, Barjolle Dominique, Baumann Philipp, Bernet Thomas, Dao Daouda, Diby Lucien N, Floquet Anne, Hgaza Valérie K, Ilboudo Léa J, Kiba Delwende I, Mongbo Roch L, Nacro Hassan B, Nicolay Gian L, Oka Esther, Ouattara Yabile F, Pouya Nestor, Senanayake Ravinda L, Six Johan, Traoré Orokya I
Group of Plant Nutrition, Institute of Agricultural Sciences, ETH Zurich, Lindau, Switzerland.
Yam Improvement for Income and Food Security in West Africa Project, Research for Development, International Institute for Tropical Agriculture, Abuja, Nigeria.
Front Plant Sci. 2017 Nov 21;8:1953. doi: 10.3389/fpls.2017.01953. eCollection 2017.
Yam ( spp.) is a tuber crop grown for food security, income generation, and traditional medicine. This crop has a high cultural value for some of the groups growing it. Most of the production comes from West Africa where the increased demand has been covered by enlarging cultivated surfaces while the mean yield remained around 10 t tuber ha. In West Africa, yam is traditionally cultivated without input as the first crop after a long-term fallow as it is considered to require a high soil fertility. African soils, however, are being more and more degraded. The aims of this review were to show the importance of soil fertility for yam, discuss barriers that might limit the adoption of integrated soil fertility management (ISFM) in yam-based systems in West Africa, present the concept of innovation platforms (IPs) as a tool to foster collaboration between actors for designing innovations in yam-based systems and provide recommendations for future research. This review shows that the development of sustainable, feasible, and acceptable soil management innovations for yam requires research to be conducted in interdisciplinary teams including natural and social sciences and in a transdisciplinary manner involving relevant actors from the problem definition, to the co-design of soil management innovations, the evaluation of research results, their communication and their implementation. Finally, this research should be conducted in diverse biophysical and socio-economic settings to develop generic rules on soil/plant relationships in yam as affected by soil management and on how to adjust the innovation supply to specific contexts.
薯蓣（品种）是一种为保障粮食安全、增加收入及用于传统医学而种植的块茎作物。这种作物对一些种植群体具有很高的文化价值。其大部分产量来自西非，在那里，需求的增长通过扩大种植面积得到了满足，而平均产量仍维持在每公顷10吨块茎左右。在西非，传统上薯蓣是在长期休耕后的第一季作物，种植时不施投入物，因为人们认为它需要高土壤肥力。然而，非洲的土壤正在日益退化。本综述的目的是展示土壤肥力对薯蓣的重要性，讨论可能限制在西非以薯蓣为基础的系统中采用综合土壤肥力管理（ISFM）的障碍，介绍创新平台（IPs）的概念，将其作为促进各行为体之间合作以设计基于薯蓣系统的创新的工具，并为未来研究提供建议。本综述表明，要为薯蓣开发可持续、可行且可接受的土壤管理创新，需要跨学科团队（包括自然科学和社会科学）以跨学科方式开展研究，涉及从问题定义到土壤管理创新的共同设计、研究结果的评估、传播及实施等相关行为体。最后，这项研究应在不同的生物物理和社会经济环境中进行，以制定关于土壤管理对薯蓣土壤/植物关系影响的通用规则，以及关于如何根据具体情况调整创新供给的规则。
