Irrigation is the practice of supplying water to soil artificially so that crops may be grown. A discipline dedicated to the design of ecologically sound and economically viable irrigation systems according to local circumstances. Water engineering entails the construction of dams, reservoirs, canals, and headwork’s to regulate and collect water from diverse sources before releasing it to fields for agricultural use. Works related to river management, drainage of waterlogged regions, and hydroelectric power production are all part of irrigation engineering’s purview. The aim of this book is to introduce the reader to the fundamentals of determining an area’s irrigation requirements and the relationships between water and the soil, plants, and environment. The concepts for selecting the optimal strategy for irrigation control as well as development are outlined for the reader. Examining the phenomena/parameters associated with irrigation and delving into the connection between irrigation demand and these variables are the main focuses of this book.