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CLAY PREPARATION 509
Preferisce climi temperato-freddi ed umidi
it is necessary to strengthen the defenses of the plants by distributing the decoction of horsetail or wormwood
high in phosphorus and medium in potassium
501 CORNOSILICE Rudolf Steiner CLAY PREPARATION 509THE 501 or CORNOSILICE What is that: cornosilica is a biodynamic preparation made from quartz (rock crystal), feldspar or orthoclase (SiO2) finely chopped and mixed with spring water until it becomes a porridge and then inserted into a cow's horn. It is buried from Easter and extracted at the end of October or beginning of November and appears as a very fine white powder when the horn is dug up and emptied. What is it for: the cornsilica processes the
