1ebd77d3_rk_Cork_Report___New_York_Wine__Proposed_function__Steiner_
[Preparation] 502 [Main Component] Yarrow blossoms [Fermented in…] Bladder of a stag Permits plants to attract trace elements in extremely dilute quantities for their best nutrition. [Proposed function (Steiner)] 
"Its homeopathic sulfur content, combined in a truly model way with potash, not only works magnificently in the plant itself, but enables the yarrow to ray out its influences to a greater distance and through large masses."
The Science of Biodynamics, Part 4: Hidden Alchemy in Compost | New York Cork Report | New York Wine
Proposed function (Steiner)