This book explains how we can produce our food by using seaweed and fish-based inputs rather than wasteful and unsustainable chemical fertilizers. Fryer and Simmons tell how growers can harness energy from the sea to extend growing seasons, increase yields, protect crops from insects and disease, and more. A timeless classic work of eco-agriculture. The knowledge contained on the pages of this book will be of value not only to farmers and gardeners, but to every food consumer as well.