This manual is designed to give detailed, practical advice on the various methodologies of organic recycling. Blue-green algae form a self-sufficient system which is capable of fixing atmospheric nitrogen in organic forms and which grows upon a free water surface.

This course teaches the farmer about the water cycle. It covers rainfall, ground water, the water table, surface water, evaporation, and transpiration. It also delivers information on wells and springs, swamps, ponds, lakes, streams and rivers. It explains how water is necessary for life.