Biodynamic Agriculture is an early form of alternative agriculture developed by Rudolf Steiner in 1924. It was one of the first organic agricultural movements. It emphasizes the use of manures and composts and excludes the use of artificial chemicals on soil and plants. However, there are some controversial elements to Biodynamic Agriculture. Rudolf Steiner emphasized taking into account lunar cycles and astrology and the use of various animal body parts in Biodynamic Agriculture.