This book is a comprehensive and practical guide to soilless growing. It is known as the Bible of the industry. It is a methods book in that it provides detailed information on how to design, set up and operate hydroponic culture systems. It also describes the most successful cultures to use with specific crops. The book provides immediate reference for those who are presently growing hydroponically as well as a guidebook to get prospective growers started. The sixth edition contains 450 photographs, drawings and tables. It has directories, addresses, references, bibliography and a complete index.