Agriculture is a broad subject. After passing graduation, higher degrees are done in specialized field of Agriculture so there is no need to read all Agriculture subjects in M. Sc. and Ph. D. But for the preparation of various agriculture competition examinations students have to read all the basic books of Agriculture to cover syllabus. That time most of students don’t have all the necessary books and too much time to read them. Therefore to overcome these problems we write this book through reading various books and other sources of Agriculture to cover brief and best information of subjects (Agronomy, Genetics and Plant Breeding, Soil Science and Agricultural Chemistry, Agricultural Microbiology, Physiology, Agricultural Entomology, Plant Pathology, Horticulture, Agricultural Economics, Agricultural Extension And Agricultural Statistics) in one book. The students will treat this book as a competitive book not a text book for various degree courses.