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Preparation 505 - oak bark
Oak bark preparation 505
Quercus robur
In connection with calcium, the oak bark preparation increases plant resistance to diseases caused by excess vitality.
Quantities:
Garden – up to 25 m³ = 5 cm³
Small farm – up to 250 m³ = 50 cm³
Farm – up to 500 m³ = 100 cm³
Large farm – up to 2,500 m³ = 500 cm³