Principles of biodynamic spray and compost preparations /
Klett, Manfred.
Edinburgh : Floris,
2006.
Originally published as: The biodynamic spray preparations : International Biodnamic Initiative Group, 1994. Published as: The biodynamic compost preparations, 1996.
Includes bibliographical references and index.
Organic fertilisers.
Spraying and dusting in agriculture.
Organic farming.
Organic gardening.