Agriculture uses a large portion of fresh water in the world. Rising world population is increasing the need of food for consumption which is eventually leading to more use of water globally. This escalates the risk of water scarcity. Water management refers to the practice of planning, developing, allocating and controlling the use of water resources. It is an important aspect in reducing water scarcity. Water management in agriculture can be done by using various strategies such as making more rainwater available to the crops, using improved crop varieties, and using improved cropping systems and agronomics. It can also be achieved by increasing crop productivity through efficient methods of irrigation and by decreasing water losses through soil evaporation. This book unfolds the innovative aspects of water management in agriculture which will be crucial for the progress of this field in the future. It elucidates new techniques and their applications in a multidisciplinary manner. This book will serve as a reference to a broad spectrum of readers.