Scheme irrigation water needs and supply
Author | : C. Brouwer |
Publisher | : |
Total Pages | : 49 |
Release | : 1992 |
Genre | : |
ISBN | : |
Download Scheme irrigation water needs and supply Book in PDF, ePub and Kindle
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Scheme Irrigation Water Needs And Supply PDF full book. Access full book title Scheme Irrigation Water Needs And Supply.
Author | : C. Brouwer |
Publisher | : |
Total Pages | : 49 |
Release | : 1992 |
Genre | : |
ISBN | : |
Author | : C. J. Brouwer |
Publisher | : Food & Agriculture Org. |
Total Pages | : 204 |
Release | : 1985 |
Genre | : Irrigation |
ISBN | : 9789251035078 |
Author | : C. Brouwer |
Publisher | : |
Total Pages | : 0 |
Release | : 1991 |
Genre | : |
ISBN | : |
Water sources and water availability; Scheme irrigation water need and supply; Matching water needs and supply.
Author | : W. Bart Snellen |
Publisher | : Food & Agriculture Org. |
Total Pages | : 60 |
Release | : 1996 |
Genre | : Political Science |
ISBN | : 9789251038765 |
Irrigation Scheme Operation and Maintenance is the tenth in the series of training manuals on irrigation prepared jointly with ILRI (International Institute for Land Reclamation and Improvement). The manual presents some of the difficulties that irrigation organizations confront in undertaking their duties and provides some orientations on how to resolve them. The paper then proceeds to discuss the methods of operating an irrigation network and the working principles involved. The maintenance tasks are discussed. To draw similarities and differences the maintenance of a motorcycle is used as a reference for the corresponding activities in an irrigation scheme. Finally, a reference is made to the need for having an effective financial control whereby the management of the system has enough resources to undertake the operation and maintenance tasks. The manual is addressed to small and medium schemes and assumes that the management organization is already in place.
Author | : Food and Agriculture Organization of the United Nations |
Publisher | : Food & Agriculture Org. |
Total Pages | : 324 |
Release | : 1994 |
Genre | : Technology & Engineering |
ISBN | : 9789251035856 |
Author | : Jean-Philippe Venot |
Publisher | : Taylor & Francis |
Total Pages | : 386 |
Release | : 2017-07-06 |
Genre | : Technology & Engineering |
ISBN | : 113498975X |
Initially associated with hi-tech irrigated agriculture, drip irrigation is now being used by a much wider range of farmers in emerging and developing countries. This book documents the enthusiasm, spread and use of drip irrigation systems by smallholders but also some disappointments and disillusion faced in the global South. It explores and explains under which conditions it works, for whom and with what effects. The book deals with drip irrigation 'behind the scenes', showcasing what largely remain 'untold stories'. Most research on drip irrigation use plot-level studies to demonstrate the technology’s ability to save water or improve efficiencies and use a narrow and rather prescriptive engineering or economic language. They tend to be grounded in a firm belief in the technology and focus on the identification of ways to improve or better realize its potential. The technology also figures prominently in poverty alleviation or agricultural modernization narratives, figuring as a tool to help smallholders become more innovative, entrepreneurial and business minded. Instead of focusing on its potential, this book looks at drip irrigation-in-use, making sense of what it does from the perspectives of the farmers who use it, and of the development workers and agencies, policymakers, private companies, local craftsmen, engineers, extension agents or researchers who engage with it for a diversity of reasons and to realize a multiplicity of objectives. While anchored in a sound engineering understanding of the design and operating principles of the technology, the book extends the analysis beyond engineering and hydraulics to understand drip irrigation as a sociotechnical phenomenon that not only changes the way water is supplied to crops but also transforms agricultural farming systems and even how society is organized. The book provides field evidence from a diversity of interdisciplinary case studies in sub-Saharan Africa, the Mediterranean, Latin America, and South Asia, thus revealing some of the untold stories of drip irrigation.
Author | : J. Doorenbos |
Publisher | : |
Total Pages | : 202 |
Release | : 1975 |
Genre | : Crops |
ISBN | : |
Calculation of crop evapotranspiration; Selection of crop coeficient; Calculation of field irrigation requirements.
Author | : Hector M. Malano |
Publisher | : |
Total Pages | : 76 |
Release | : 2004 |
Genre | : Agricultural productivity |
ISBN | : |
"Contains the main findings of a project carried out in Vietnam which focused on the operation and management of publicly managed irrigation systems. These findings formed the basis for the development of a management improvement model for irrigation systems in Vietnam which is also applicable to other systems throughout Asia"--Summary Web page.
Author | : François Molle |
Publisher | : CABI |
Total Pages | : 367 |
Release | : 2007-01-01 |
Genre | : Technology & Engineering |
ISBN | : 1845932927 |
Much hope has been vested in pricing as a means of helping to regulate and rationalize water management, notably in the irrigation sector. The pricing of water has often been applied universally, using general and ideological policies, and not considering regional environmental and economic differences. Almost 15 years after the emphasis laid at the Dublin and Rio conferences on treating water as an economic good, a comprehensive review of how such policies have helped manage water resources an irrigation use is necessary. The case-studies presented here offer a reassessment of current policies by evaluating their objectives and constraints and often demonstrating their failure by not considering the regional context. They will therefore contribute to avoiding costly and misplaced reforms and help design water policies that are based on a deeper understanding of the factors which eventually dictate their effectiveness.
Author | : National Research Council |
Publisher | : National Academies Press |
Total Pages | : 158 |
Release | : 2007-03-20 |
Genre | : Science |
ISBN | : 0309179254 |
This report contains a collection of papers from a workshopâ€"Strengthening Science-Based Decision-Making for Sustainable Management of Scarce Water Resources for Agricultural Production, held in Tunisia. Participants, including scientists, decision makers, representatives of non-profit organizations, and a farmer, came from the United States and several countries in North Africa and the Middle East. The papers examined constraints to agricultural production as it relates to water scarcity; focusing on 1) the state of the science regarding water management for agricultural purposes in the Middle East and North Africa 2) how science can be applied to better manage existing water supplies to optimize the domestic production of food and fiber. The cross-cutting themes of the workshop were the elements or principles of science-based decision making, the role of the scientific community in ensuring that science is an integral part of the decision making process, and ways to improve communications between scientists and decision makers.