"This book provides excellent source material, covering a range of important topics for sound and sustainable water management practices for agriculture. This is an urgent need as food production is the major consumer of water resources This book will hold the keys to help unlock the potential for improved water management. The editor and author are to be applauded in taking this issue side by side with issues of sustainability." David Molden, Director General - International Centre for Integrated Mountain Development, Nepal (formerly Deputy Director General for Research at the International Water Management Institute)