The science and technology of producing and using plants for food, fiber, fuel and land reclamation is called agronomy. It integrates the principles of soil science, plant genetics, plant physiology and meteorology. Plant breeding is an important tool of agronomy. The selective breeding of plants has resulted in the production of crops with enhanced yields and nutritional value. This has been observed in major crops such as wheat, corn and soybeans. There has also been a significant use of biotechnology to extend and expedite the development of crop varieties with desired traits. Modern agronomy also focuses on soil analysis to determine the soil that is most conducive to plant growth. These analyses aid in balancing soil nutrients for optimum results. The ever growing need of advanced agricultural technology is the reason that has fueled the research in the field of agronomy in recent times. This book is a compilation of chapters that discuss the most vital concepts and emerging trends in agronomy. Coherent flow of topics, student-friendly language and extensive use of examples make it an invaluable source of knowledge.