Biodynamic soil and crop management means more than simply replacing nutrient elements or increasing their supply. Instead, biodynamic sprays support the organization of growing plants. This booklet is a practical guide to their preparation and application. Dr Koepf covers all the major aspects of the preparation process, from selecting the right sort of water to storage methods. He then goes on to cover the amount and mode of application, and gives examples of the sorts of results that can be expected from the use of these sprays.