By Tom Mansell We now come to some of the most famous and well-known preparations in biodynamics, the field sprays. Cow manure or silica fermented in the ground in cow horns is practically the very symbol of biodynamics. These preparations are highly representative of the movement, but what, if anything, do they do? Field spray preparations Preparation Main Component Fermented in… Proposed function (Steiner) Proposed function (JPI) 500 Cow manure Horn of a cow "We preserve in the horn the forces it was accustomed to exert within the cow itself, namely the property of raying back whatever is life-giving and…