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.

Balram Panigrahi Professor and Head Department of Soil and Water Conservation Engineering Orissa University of Agriculture and Technology Bhubhaneswar, Odisha - 751 003,India

1. Farm pond irrigation and rainfed agriculture. 2. Types of farm ponds. 3. Location and site selection. 4. Water supply to farm pond. 5. Water demand from farm pond. 6. Dimensions of farm pond. 7. Optimum size of farm pond. 8. Construction of farm pond. 9. Losses of water in farm pond. 10. Efficient use of harvested water of farm pond. 11. Economics of farm pond irrigation systems. 12. Farm pond maintenance. 13. Other sources of irrigation.