"This edition provides the latest technology in the design of surface, sprinkler, and microirrigation systems along with basic information about soils and current information on estimating crop water requirements. New chapters have been added on planning systems, environmental issues, efficiency and uniformity, chemigation, and use of wastewater for irrigation."--Preface
Farmer managed irrigation systems ; Performance evaluation ; Performance indexes ; Irrigation management ; Case studies ; Water distribution ; Social aspects ; Water users' associations ; Tube wells / Indonesia / Pakistan / Bolivia / Israel / Mexico / Peru / Venezuela / Andean Region / Philippines / Nepal / Sri Lanka / India / Egypt / Portugal / Tanzania / Argentina / China / Bangladesh
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.
The artificial techniques which are employed to apply controlled amounts of water with the objective of assisting agricultural activities fall under irrigation. The discipline finds a wide variety of applications such as maintenance of landscapes, revegetation of disturbed soils in dry areas, frost protection, suppression of weed growth, and prevention of soil consolidation. According to the method of water supply and the amount of water supplied, irrigation techniques can be classified into surface irrigation, micro irrigation, sprinkler irrigation and sub irrigation. Sprinkler irrigation can be further divided into methods using central pivot, lateral move, lawn sprinklers and hose-end sprinklers. Some of the different water sources which are used for irrigation systems are springs, wells, rivers, lakes, drainage water and treated wastewater. This book elucidates the concepts and innovative models around prospective developments with respect to irrigation. It aims to shed light on some of the unexplored aspects of irrigation. This book is appropriate for students seeking detailed information in this area as well as for experts.
Overview of the workshop;mobilization of the rural poor fir access to agricultural; irrigation water management in Gylepphug lift irrigationscheme; role of the institutional organizer in assisting farmers to participate in the rehabilitation of tank systems; using irrigation agency staff as institutional organizers: the small systems turnover program in Indonesia; community organizers and farmer participation: a casestudy of traditional irrigation systems in south Sumatra,Indonesia;role of the social organizers in pumped irrigation systems in Subang, west java, Indonesia; community-based irrigation management in Laos; roleof social organizers in assisting farmer-managed irrigation systems: the case of the agricultural bank of Nepal; role of social organizersin improving irrigation management: the experience in Nepal; role of social organizers: the aga khan rural support programme for irrigation infrastructure development, Gilgit; role of social organizers in communal irrigation development in the Philippines; role of the irrigation community organizers: the siwaragan experience; prospects of using social mobilizers in the management of minor irrigation systems in Sri Lanka; adjusting the process for participatory management through a teamapproach: a case study in North central Sri Lanka; role of social orgnizers in the development of small irrigation systems in Northeast Thailand by the royal irrigation department; opening active communicationbetween agency and peoples irrigation associations through the...
