This book is written to serve a text book of Agronomy-cum-reference/guide book for the students of agriculture, veterinary, soil conservation and field practitioners. The book fills the need for an up-to-date comprehensive text on integrated farming and cropping systems management under varying situations and covers comprehensively the content of all courses in Agronomy offered for the students at under graduate and post graduate levels of Agricultural universities in the country. This book will be of immense use in imparting knowledge on the basic principles of Agronomy and applied aspects of Farming Systems for students, teachers, scientists, extension workers and professionals engaged in agricultural development. The coverage of fifteen chapters brings out all aspects of Agronomy, which includes Introduction and principles of Agronomy, Agricultural meteorology, Cropping systems and patterns, Tillage and tillage operations, Plant population and yield, Seeds and sowing, Assessment of agronomic interactions, Dry land agriculture, Soil management, Nutrient management, Crop production management, Water management, Weed management, Farming systems, and Achievements and IFS models in Orissa. Each chapter is brief, comprehensive full-fledged with respect to technical information.