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Gypsum Powder

Gypsum Powder

Regular price £4.99 GBP
Regular price Sale price £4.99 GBP
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For your mushroom substrates, whether grain spawn or fruiting substrate.

Gypsum powder is used to increase the pH in mushroom growing substrates. It is also a yield enhancer as it supplies minerals and trace elements to the mycelium.

Directions of Use:

  • Gypsum should be mixed at a rate of 2-5% of the dry weight of the substrate.
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