Browsing by Author "Uphoff, N. T."
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- Agroecological Innovations: Increasing Food Production with Participatory DevelopmentUphoff, N. T. (London, UK: Earthscan, 2002)This book presents a collection of innovative, successful and diverse approaches to agricultural development. Documented in 12 case studies, these approaches draw upon greater knowledge, skill and labour input, rather than on larger, unsustainable capital expenditure, and are shown to increase yields substantially. Part 1 of the book (chapters 1-6) deals with issues for analysis and evaluation concerning sustainable agricultural development. Part 2 (chapters 7-18) presents the case studies from Africa, Latin America, and Asia. Part 3 (chapters 19-22) focuses on advancing agroecological agriculture with participatory approaches. The book has a subject index.
- Assessing the scientific knowledge base for ecoagricultureSANREM CRSP (Blacksburg, Va.: SANREM CRSP, OIRED, Virginia Tech, 2007)Continued population growth and urban expansion are reducing the availability per capita of land for agricultural purposes. Growing water scarcity is threatening agricultural production and creating challenges for farmers. As the severity of these problems increases, the world continues to demand that agriculture: feed the growing global population and reduce hunger; generate sustainable incomes and livelihoods; contribute to export growth strategies; reduce poverty; and support economic and social equity. These demands highlight the need for more productive agricultural production systems; however, there is growing concern that current systems are not sustainable and may be contributing to the degradation of ecosystems that are important to humans and other species. Out of this concern comes a new approach to farming that combines sustainable agriculture with the protection of ecosystems and biodiversity. This approach, called ecoagriculture, promotes sustainable solutions to global malnutrition and hunger while protecting and enhancing the natural resources used in food production and wildlife conservation.
- Biological Approaches to Sustainable Soil SystemsUphoff, N. T.; Ball, A. S.; Fernandez, E.; Herren, H.; Husson, O.; Laing, M.; Palm, C.; Pretty, Jules; Sanchez, P. A.; Sanginga, N. (Boca Raton, FL: CRC Press, 2006)Sustainable Soil Systems are critical to expanding agricultural output. This book aims to increase knowledge of biological processes of the soil in order to advance understanding of effective soil systems management. The editors have assembled contributing authors from a variety of disciplines and countries to create a comprehensive resource on soil biological systems. Part I offers a base for understanding soil system management in tropical, temperate, and arid regions. Part II provides a multidisciplinary overview of soil agents and processes, examining soil ecology through topics such as the rhizosphere, the role of fauna and fungi in soil systems, and allelopathy. Part III presents strategies for soil management, exploring methods as diverse as conservation agriculture and deep tillage. Part IV broadens the scope to contextualize biological approaches to soils systems management, analyzing effects on crop pests on diseases, economic and policy contexts, and approaches for monitoring and assessment.
- Ecoagriculture: A review and assessment of its scientific foundationsBuck, L. E.; Gavin, T. A.; Lee, D. R.; Uphoff, N. T. (Ithaca, New York: Cornell University; SANREM CRSP, University of Georgia, 2004)As problems such as the loss of biodiversity, rural poverty and environmental degradation get worse, natural resource management practices need to change to counter this trend. New institutions and practices need to be embraced in order to encourage practices to reverse these trends. There are also competing pressures, such as those to increase agricultural production and to conserve biodiversity, that must be dealt with.
- Farmer managed irrigation systems in the changed context: Proceedings of the Second International Seminar held on 18-19 April 2002, Kathmandu, NepalPradhan, P. (ed.); Gautam, U. (ed.) (Kathmandu, Nepal: Farmer Managed Irrigation Systems Promotion Trust, 2002)In these conference proceedings, multiple scholars contributed research and analysis regarding the institutional arrangements used to govern irrigation systems in multiple countries.
- Higher yields with fewer external inputs? The system of rice intensification and potential contributions to agricultural sustainabilityUphoff, N. T. (Earthscan, 2003)Although sustainable agriculture is not limited to production systems that use few or no purchased inputs, systems that are less dependent on external inputs have better prospects for sustainability - as long as they can meet the needs of producers and consumers as well as do conventional systems depending heavily on fossil fuel and other capital-intensive inputs. The system of rice intensification (SRI) developed in Madagascar can raise irrigated rice yields to about double the present world average without relying on external inputs, also offering environmental and equity benefits. SRI methods change they way plants, soil, water and nutrients are managed - rather than utilising new-variety seeds, inorganic fertilisers or other agrochemicals. SRI also reduces the need for irrigation water by about half and diminishes the requirements for capital and seed. SRI requires more knowledge and skill on the part of farmers and initially more labour per hectare. But greater labour intensity is compensated by farmers achieving higher returns for labour, and SRI can become labour-saving. SRI should make irrigated rice production more sustainable, as well as profitable. SRI experience may reveal other opportunities that can make agricultural systems more productive and beneficial for the long term.
- Opportunities for water saving with higher yield using the system of rice intensificationSatyanarayana, A.; Thiyagarajan, T. M.; Uphoff, N. T. (2006)This paper presents the concept and methodology of The System of Rice Intensification (SRI), a method of growing rice in areas where water availability is limited and traditional flood irrigation of rice paddies is not feasible. Developed in Madagascar, this system purportedly reduces the water requirement for growing rice by 25 to 50 percent, and increases rice yields by 25 to 100 percent. There is much skepticism about SRI, yet its methods have been effectively applied in more than 20 countries. If successful, SRI can conserve water resources, lower farmers' costs of production, and increase farmers' net incomes.
- Sustainable agriculture and the international rice-wheat systemLal, Rattan; Hobbs, P. R.; Uphoff, N. T.; Hansen, D. O. (New York, NY: Marcel Dekker Inc., 2006-12-27)With contributions from 65 international authors, this book describes the rice-wheat farming system which is key to food security in South Asia. It is a compendium of information on no-till farming in South Asia in particular and the world in general, with case studies from India, Nepal, Pakistan and Bangladesh. The book is divided into seven sections. Section I is an overview section on food security and natural resources, including a chapter on prospects for world agriculture in the 21st century, one on soil and water resources in South Asia, and a third on food security and environmental sustainability. Section II, with four chapters, has the theme of no-till farming, including historical development, problems and challenges, and opportunities and constraints for future development. Section III, with six chapters, features case studies of the no-till rice-wheat system in different South Asian countries. In Section IV, the discussion of no-till farming extends to other soil-specific situations, including case studies from the USA, Brazil, Australia and Latin America. Seven chapters on social and economic issues are presented in Section V, including chapters on temperate environments, soil and water sustainability in Australia, prospects for conservation tillage in India, and policy challenges for the rice-wheat system on the Indo-Gangetic Plains. Section VI includes two chapters on networking and international cooperation, while the final section includes just one chapter (by the four editors) outlining research and development priorities. (CAB Abstract)