"Native to the New World, the potato was domesticated by Andean farmers, probably in the Lake Titicaca basin, almost as early as grain crops were cultivated in the Near East. Full of essential vitamins and energy-giving starch, the potato has proved a valuable world resource. Curious Spaniards took the potato back to Europe, from whence it spread worldwide. Today, the largest potato producer is China, with India not far behind. To tell the potato's story, Lang has done fieldwork in South America, Asia, and Africa."--Jacket.
Synthesizes a significant amount of data and information on roots and tubers in an effort to provide a clearer vision of their past, present, and future roles in the food systems of developing countries. How the production and use of these commodities have changed and will continue to change over time are all the more important to understand because of the contribution they make to the diets and income-generating activities of the rural and urban poor in Asia, Africa, and Latin America. Provides a fuller understanding of the prospects of roots and tubers for food, feed, and other uses in developing countries.
Analyze alternative national and international strategies and policies for meeting foof needs of the developing world on a sustainable basis, with particular emphasis on low-income countries and on the poorer groups in those countries.
As international agricultural research centers places greater emphasis on poverty reduction, a debate is underway whether higher priority should be given to research to “add value” to agricultural commodities through post-harvest innovations at the expense of the traditional emphasis given to agricultural production. In particular, post-harvest research is seen as a way of creating new markets for commodities that may be in surplus or are facing declining demand. In this paper we review the evidence on the economic benefits from past public investments in post-harvest research to increase value of two major food crops – potato and sweetpotato. For the review we draw upon the experiences of two research institutions: first for the United States public research system during the early 20th Century and then for the International Potato Center (CIP) since its post-harvest research program began in 1975. Most of the evidence from both the U.S. and CIP’s experiences strongly suggests that public sector investment in generating value-enhancing technologies for potato and sweetpotato has been characterized by a low rate of return. New product development is a particularly risky endeavor. Implications for investment by international agricultural research centers in value-enhancing agricultural research are discussed.
Integrated Pest Management – Dissemination and Impact, Volume 2 is a sequel to Integrated Pest Management – Innovation-DevelopmentProcess, Volume 1. The book focuses on the IPM systems in the developed countries of North America, Europe and Australia, and the developing countries of Asia, Latin America and Africa. One of the major impedimentsin the dissemination and adoption of the IPM innovation is the complexity of the technology and reaching the vast population of farmers especially in the developing countries. The IPM-innovation development process is incomplete without the diffusion and adoption of IPM methods by the end users, and through its consequences. In spite of all the efforts in the developed and developing countries, the adoption of IPM is still low with few exceptions. The book covers the underlying concepts and methodologies of the diffusion of innovation theory and the program evaluation; and reviews the progress and impact of IPM programs implemented in the industrialized, the green revolution and the subsistence agricultural systems of the world. Forty-four experts from entomology, plant pathology, environmental science, agronomy, anthropology, economics and extensioneducationfromAfrica, Asia, Australia, Europe,NorthAmerica and South America have discussed impact of IPM with an interdisciplinary perspective. Each one of the experts is an authority in his or her eld of expertise. The researchers, farmers’education,supportingpoliciesofthegovernmentsandmarketforcesarethe elements of the IPM innovation system to achieve wider adoption of IPM strategy in agriculture.
"The world's agricultural economy was transformed remarkably during the 20th century. The agricultural productivity growth that fueled this change was generated primarily by agricultural R&D financed and conducted by a small group of rich countries-especially the United States, but also Japan, Germany, and France. In an increasingly interdependent world, both rich and poor countries have depended on agricultural research conducted in the private and public laboratories of these few countries, even if they have not contributed to financing the activity. But now the rich-country research agendas are shifting. In particular, they are no longer as interested in simple productivity enhancement. Dietary patterns and other priorities change as incomes increase. Food-security concerns are still pervasive among poor people, predominantly in poor countries. In rich countries we see a declining emphasis on enhancing the production of staple foods and an increasing emphasis on enhancing certain attributes of food (such as growing demand for processed and so-called functional foods) and on food production systems (such as organic farming, humane livestock production systems, localized food sources, and "fair trade" coffee). In addition to growing differences between rich and poor countries in consumer demand for innovation, research agendas may diverge because of differences in producer and processor demands. Farmers in rich countries are demanding high-technology inputs that often are not as relevant for subsistence agriculture (such as precision farming technology or other capital-intensive methods). As well as differences in value-adding processes to serve consumer demands, differences in farm production technologies are emerging to serve the evolving agribusiness demands for farm products with specific attributes for particular food, feed, energy, medical, or industrial applications.The purpose of this volume is to document the changing institutions and investments in agricultural R&D in less-developed countries, in part to form a companion volume to Paying for Agricultural Productivity by providing a more complete global picture of the issues."