Book is prepared with a specific purpose of the course Fundamentals of Agronomy and the content of this book is covered as per the new syllabus of the course Fundamentals of Agronomy recommended by the Fifth Dean Committee of ICAR. Book consist of Agronomy and its scope, seeds and sowing, tillage and tilth, crop density and geometry, Crop nutrition, manures and fertilizers, nutrient use efficiency, water resources, soil-plant-water relationship, crop water requirement, water use efficiency, irrigation- scheduling criteria and methods, quality of irrigation water, water logging, weeds and their management, growth and development of crops, plant ideotypes, cropping systems and crop rotation, adaptation and distribution of crops, crop management technologies in problematic areas, harvesting and threshing of crops. Students and readers will find this book with much utility.