In the last four decades of the twentieth century the use of sweetpotato was diversified beyond their classification as subsistence, food security, and famine-relief crop. In developing countries they serve both as human food and for feeding livestock. In Western countries they appeal to health conscious consumers because of their nutritional aspects. The sweetpotato is very high in nutritive value, and merits wider use on this account alone. The book has 2 parts. A general one giving up-to-date information on the history, botany, cultivars, genetic engineering, propagation, diseases and pests, nutritional data and marketing; and a second part presenting data on sweetpotato growing practices in different areas of the world. The information should be useful to researchers, practitioners and crop administrators in different countries.

Cover -- Title -- Copyright -- CONTENTS -- List of abbreviations -- List of contributors -- Acknowledgements -- 1 Knowledge politics in development-oriented agronomy -- 2 On the movement of agricultural technologies: packaging, unpacking and situated reconfiguration -- 3 South-South cooperation and agribusiness contestations in irrigated rice: China and Brazil in Ghana -- 4 GM crops 'for Africa': contestation and knowledge politics in the Kenyan biosafety debate -- 5 Systems research in the CGIAR as an arena of struggle: competing discourses on the embedding of research in development -- 6 One step forward, two steps back in farmer knowledge exchange: 'scaling up' as Fordist replication in drag -- 7 When the solution became a problem: strategies in the reform of agricultural extension in Uganda -- 8 Sweet 'success': contesting biofortification strategies to address malnutrition in Tanzania -- 9 Crops in context: negotiating traditional and formal seed institutions -- 10 Laws of the field: rights and justice in development-oriented agronomy -- 11 A golden age for agronomy? -- References -- Index

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