Develops the principles of irrigation and farm irrigation system design in the context of their relationship to plant science, soil science, and fluid mechanics. Consideration of related material is worked into the text only as it is needed to develop an in-depth understanding of irrigation systems, a classroom-tested approach that improves student motivation and comprehension. The text describes the design of irrigation systems and the roles of the designer and landowner in the process, and covers all current irrigation practices as well as the components, layout, technical, and economic aspects of various systems and methods. Includes carefully prepared classroom-proven explanations, solved example problems, computer programs, and homework assignments.

Overview of the workshop; papers related to design outcomes; papers related to the design process; case studies; country papers.

This is a text book for agriculture and agricultural engineers and will be very much helpful for the beginning students in irrigation. It is designed to guide students from a basic knowledge of soil, mathematics, hydrologic and hydraulics to the state-of-the-art irrigation system design and management. Since major and medium irrigation projects are too costly and at the same time are not eco-friendly, the major thrust of research is now being imparted on low cost and easy to construct farm irrigation structures. The primary aim of the book is to design an optimum size small scale water harvesting structure which is the farm pond mostly used by the farmers in the farms. My goal is to present the principles and concepts of farm irrigation in a simple manner to maximize the students learning, understanding and motivation. The method and order of presentation have been carefully developed and classroom tested to make this book a useful and effective teaching tool. The book will not only be a helping tool to the students and teachers in agriculture and agricultural engineering but also to all the practicing engineers, agriculturists, soil conservationists and agricultural extension workers who deal directly or indirectly with water management and other associated farm development works. However, the book cannot be used for design of complex hydraulic structures including dams and reservoi The book contains 23 solved problems, 238 short and long type questions, 42 tables, 55 figures and more than 138 references which will be immensely helpful to the students and design engineeSeveral field experimental results have also been incorporated in the book at appropriate sections to make the book interesting for the readers.

"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

Of all the confrontations man has engineered with nature, irrigation systems have had the most widespread and far-reaching impact on the natural environment. Over a quarter of a billion hectares of the planet are irrigated and entire countries depend on irrigation for their survival and existence. Considering the importance of irrigation schemes, it is unfortunate that until recently the technology and principles of design applied to their construction has hardly changed in 4,000 years. Modern thinking on irrigation engineering has benefited from a cross-fertilization of ideas from many other fields including social sciences, control theory, political economics and agriculture. However, these influences have been largely ignored by irrigation engineers. Drawing on almost 40 years of experience of irrigation in the developing world, Laycock introduces new ideas on the design of irrigation systems and combines important issues from the disciplines of social conflict, management, and political thinking.

In many countries irrigated agriculture consumes a large proportion of the available water resources, often over 70% of the total. There is considerable pressure to release water for other uses and, as a sector, irrigated agriculture will have to increase the efficiency and productivity of its water use. This is particularly true for manually operated irrigation systems managed by government agencies, which provide water for a large number of users on small landholdings and represent 60% of the total irrigated area worldwide. Drawing on the author's 30 years of experience in some 28 countries, this book offers knowledge of the management of irrigation and drainage systems, including traditional technical areas of systems operation and maintenance, and expanding managerial, institutional and organizational aspects. Chapters provide guidelines to improve management, operation and maintenance processes, which move management thinking out of traditional public-sector mindsets to a more customer-focused, performance-oriented service delivery. As a practical guide to improve efficiency and productivity in irrigated agriculture, this book will be essential reading for irrigation managers and technicians as well as students and policy makers in water management, agriculture and sustainable development.

The role of irrigation in food and fiber production; Farm resources and system selection; Soil water; Salinity in irrigated agriculture; Water requirements; Drainage requirements and systems; Land shaping requirements; Farm water delivery systems; Farm pumps; Farm water distribution systems; Hydraulics of surface irrigation; Design and operation of gravity or surface systems; Fluid dynamics of sprinkler systems; Design and operation of sprinkler systems; Design and operation of trickle (drip) sustems; Evaluating irrigation systems and practices; Irrigation water management.

This book for Agriculture and Agricultural and Civil Engineers and will be very much helpful for the beginning students in irrigation. It is designed to guide its readers in: Basic knowledge of soil, water and plant, hydrologic and hydraulics to the state-of-the-art of irrigation system design and management. Presented the principles and concepts of farm irrigation in a simple manner to maximize the students learning, understanding and motivation. The method and order of presentation have been carefully developed and classroom tested to make this book a useful and effective teaching tool. The book is written covering syllabus of irrigation engineering which is taught in different State Agricultural Universities as well as in the department of Civil Engineering of different Engineering colleges. The book contains adequate solved problems, short and long type questions, tables, figures which will be immensely helpful to the students and design engineers. Several field experimental results have also been incorporated in the book at appropriate sections to make the book interesting for the readers.