Agriculture created enormous job opportunities in teaching, research, extension, industries and various financial institutions, which are based on competitive examinations. This book covers all the agriculture related discipline. Large number of objective type questions appear in these examination. These questions call for quick answering for success within a specified short period of time. In the present book, a sincere effort has been made by authors to present the overview of concise and point wise information in most easy and understandable language. This book serves as a guide to the students to test their knowledge in the field of agriculture as a whole. Special emphasis has been given to students appearing for various competitive examinations like post-graduate entrance examinations, AIEEA: ICAR-JRF/NTS (PGS), SAUs Entrance, Ph.D., Senior Research Fellowship (SRF), Agricultural Research Service (ARS), ICAR-National Eligibility Test (NET), SET, Civil Services, Agricultural Officers, Bank P.O. (Agriculture), ADO and Allied Agricultural Examinations conducted by different agencies.