This book will be useful for students of agriculture, agronomy, agricultural engineering, agricultural scientists, researchers, development professionals, and other experts working in related fields. As the world population is increasing at an alarming rate, the demand for food, feed, and fibers is expected to rise significantly in the future. Expertise in the fields of agronomy, irrigation, and nutrient management is essential for addressing the issues of unproductive soils. Such countries will become significantly more productive with the help of technologies and practices in agronomy, irrigation, and nutrient management. The productivity of unfertilized and currently productive areas under natural rainfall could be greatly enhanced through irrigation and fertilization. Although the book has been edited with the utmost care, some errors may have inadvertently slipped through. Suggestions, feedback, and corrections from readers are welcome to improve this publication in the next edition.