The report begins with an overview of the challenges on agricultural systems to make more food available and accessible and lays out the potential of irrigation to make agriculture more productive, efficient and profitable for smallholder farmers. A discussion on the potential to expand irrigation across Africa and barriers to uptake including an analysis of the inherent risks and desired outcomes of irrigation forms the next section. The report reviews the traditional and new, innovative smallscale and large-scale irrigation approaches and technologies that have been implemented in Africa, followed by an analysis of the experiences of six African countries that have been particularly innovative and successful in terms of their institutional and policy design for irrigation. The report closes by drawing some key lessons and offering nine recommendations for actions by African governments and the private sector.
There is increasing recognition of the need to bring about changes across the full spectrum of agricultural practices to ensure that, in future, food production systems are more diverse, sustainable and resilient. In this context, the objectives of irrigation need to be much more ambitious, shifting away from simply maximizing crop yields to maximizing net benefits across a range of uses of irrigation water, including ecosystems and nature-based solutions. One important way to achieve this is by better integrating fisheries into the planning, design, construction, operation and management of irrigation systems. Irrigation – a major contributor to the Green Revolution – has significantly improved agricultural production worldwide, with consequent benefits for food security, livelihoods and poverty alleviation. Today, irrigated agriculture represents about 21 percent of cultivated land, but contributes approximately 40% of the total global crop production. Many governments continue to invest in irrigation as a cornerstone of food security and rural development. Investments in irrigation often represent a pragmatic form of adaptation to changing climatic conditions. This guide focuses on how to sustainably optimize and broaden the range of benefits from irrigation development - not only economic but also social and environmental benefits . It emphasizes the opportunities that fisheries could provide to increase food production and economic returns, enhance livelihoods and public health outcomes, and maintain key ecosystem services. The guide considers possible trade-offs between irrigation and fisheries, and provides recommendations on how these could be minimized.
Access to digital innovations – from SMS advice services to digital networks that connect women in agribusiness – is enabling women to participate in formal agricultural value chains and improve their livelihoods. SPORE is the quarterly magazine of the Technical Centre for Agricultural and Rural Cooperation (CTA), offering a global perspective on agribusiness and sustainable agriculture. CTA operates under the Cotonou Agreement between the countries of the Africa, Caribbean and Pacific (ACP) group and the European Union and is financed by the EU.
Irrigation is increasingly promoted in Africa south of the Sahara, but the benefit streams of small-scale irrigation in Mali remain largely unknown. This study collected detailed quantitative data of irrigators and non-irrigators in two regions of Mali: Mopti, which is in the Sahelian zone, and Sikasso, the southernmost region of the country, which receives more rainfall. Econometric results show that the irrigation suitability, female household headship, proximity to markets and market participation increase the propensity to irrigate. The results suggest that small-scale irrigation investments have the potential to benefit women farmers directly. We used Two-Stage Weighted treatment effects multivariate regression to identify the impact of irrigation on selected outcomes. The impact assessment results show that crop income and diversification, market participation, employment, and dietary quality were substantially higher in irrigated farms compared to non-irrigated farms. Likewise, irrigating households had higher food security and higher dietary diversity. The results show that irrigation is a key entry point for combatting climate variability and change. However, the low adoption levels of improved water-lifting technologies are a major challenge. Limited promotion of solar and motorized pumps has contributed to the low adoption of these improved water-lifting technologies. A less profitable option, lifting water with a rope-and-bucket system, remains the most common water-lifting technology in the study areas. We find that investing in effective advisory services that target agricultural water management could increase uptake of more profitable irrigation technologies.
Irrigated agriculture can support food and nutrition security, increase rural employment and incomes and can act as a buffer against growing climate variability and change. However, irrigation development has been slow in Africa south of the Sahara and Ghana is no exception. Out of a total potential irrigated area of close to 2 million ha, less than 20,000 ha large-scale irrigation and less than 200,000 ha of small-scale irrigation have been developed; but the latter is only an estimate. To identify entry points for accelerating small-scale irrigation development in Ghana, a national and a regional stakeholder Net-Map workshop were held in Accra and Tamale, respectively. The workshops suggest that a wide variety of actors from government, the private sector, international organizations and funders, research organizations and NGOs are involved in the diffusion of small-scale irrigation technologies. However, there are important differences between actors perceived to be key at the national and at the regional levels in northern Ghana. At the national level, diffusion of small-scale irrigation technologies is considered to be largely influenced by the Ghana Irrigation Development Authority together with a series of private sector actors focused on importation, distribution and financing of technologies. Farmers are considered to have no influence over the diffusion of small-scale irrigation, suggesting that small-scale irrigation is largely considered a supply-driven process. In northern Ghana, on the other hand, farmers are considered to be key influencers, although participants noted that much of this was potential influence, together with a larger and more diversified set of government stakeholders that are seen as regulators and possibly gatekeepers. For irrigation diffusion to successfully move from importation to distribution to benefiting smallholder farmers, all of these actors have to come together to better understand farmers’ needs and challenges. A multi-stakeholder platform could help to increase communication between farmers as the ultimate beneficiaries of small-scale irrigation technologies and the many other actors interested in supporting this process.
This open access book seeks effective strategy to realize a rice Green Revolution in sub-Saharan Africa based on more than ten years of research team’s inquiries into determinants and consequences of new technology adoption in rice farming in seven countries in this region. Rigorous statistical analyses are carried out by using valuable household data of rice farmers. The book is actually sequel to the two earlier books on the same subject published by Springer and edited by K. Otsuka and D.F. Larson, An African Green Revolution published in 2013 and In Pursuit of an African Green Revolution in 2016. The main message of the first book was that rice is the most promising cereal crop in SSA because of the high transferability of Asian rice technology, whereas that of the second book was that rice cultivation training programs are effective in significantly increasing rice yield in SSA. This third book has wider coverage in terms of topics, study periods, and study sites. It continues to show the significant impacts of rice cultivation training on productivity and newly demonstrates the high sustainability of the productivity impact of the training and the existence of spillover effects from trainees to other farmers by using panel data. We newly assess the important role of mechanization in intensification of rice farming, high returns to large-scale irrigation schemes, and the critical role of rice millers in improving the quality of milled rice. Based on these studies, this book provides clear pathways toward full-fledged Green Revolution in rice farming in sub-Saharan Africa.
What would it take to achieve a genuinely food-secure world—one without hunger or malnutrition, where everyone gets to consume the right quantity and quality of food to live a healthy, active, and productive life? Bringing about such a future requires transforming how our food is grown, managed, and distributed. From production to consumption, food systems must be sustainable, halting environmental degradation and even repairing the damage we have previously done. This book provides an accessible guide to making healthy diets from sustainable food systems available to all. Glenn Denning bridges the divisive worlds of science, policy, and practice. He synthesizes the most relevant literature and shares personal perspectives and insights gained over four decades working in more than fifty countries, coupled with the real-world experience of hundreds of leading experts. Universal Food Security lays out key priorities—sustainable intensification, market infrastructure, postharvest stewardship, healthy diets, and social protection—and presents how to achieve food systems transformation. Denning identifies the education and development of practitioner-leaders as the critical trigger of change. Universal Food Security informs and inspires those leaders—acting on their own and with others through institutions—to achieve a food-secure world. This book is an ideal handbook for students and practitioners looking to transform our food systems at all levels.
Intensifying water constraints threaten food security and nutrition. Thus, urgent action is needed to make water use in agriculture more sustainable and equitable. Irrigated agriculture remains by far the largest user of freshwater, but scarcity of freshwater is a growing problem owing to increasing demand and competition for freshwater resources. At the same time, rainfed agriculture is facing increasing precipitation variability driven by climate change. These trends will exacerbate disputes among water users and inequality in access to water, especially for small-scale farmers, the rural poor and other vulnerable populations. The State of Food and Agriculture 2020 presents new estimates on the pervasiveness of water scarcity in irrigated agriculture and of water shortages in rainfed agriculture, as well as on the number of people affected. It finds major differences across countries, and also substantial spatial variation within countries. This evidence informs a discussion of how countries may determine appropriate policies and interventions, depending on the nature and magnitude of the problem, but also on other factors such as the type of agricultural production system and countries’ level of development and their political structures. Based on this, the publication provides guidance on how countries can prioritize policies and interventions to overcome water constraints in agriculture, while ensuring efficient, sustainable and equitable access to water.
The new Kenyan government faces a complex domestic and global environment, and it is widely expected to address key food and agricultural challenges with a new set of policies and programs. This policy brief presents key recommendations from a forthcoming book, Food Systems Transformation in Kenya: Lessons from the Past and Policy Options for the Future, which provides research-based “food for thought and action” to support the Kenyan government’s efforts to improve food security.
This book reviews the latest information on the assessment of surface and groundwater resources in Algeria. The authors cover a large diversity of topics, including the status and assessment of water resources, impacts of pesticides, soil droughts, analysis of flood characteristics, hydrogeological investigations and modeling applications, and evapotranspiration. Special attention is given to the impacts of climate changes on water resources. The assessment methods present in this book can be used or adapted to study other regions of North Africa, Middle East and/or in the Mediterranean with similar climate conditions as Algeria. This book and the companion volume Water Resources in Algeria - Part II: Water Quality, Treatment, Protection and Development will appeal to engineers, researchers, graduate students and policymakers interested in the field of groundwater and surface water assessment.
