Biodynamic Sprays by H. Koepf: "Living organisms consist of matter. But they are formed and kept functioning by the forces of life ... Soil and crop management should enhance these functions. This implies more than merely replacing nutrient elements or increasing their supply. More is needed than simply retstoring fertility by proper manuring. The Biodynamic approach, therefore, includes specific measures which support the organization of growing plants... " - Koepf
A 16 page booklet guide to the biodynamic spray preparations.