Agricultural Grade Gypsum


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  • 100% Natural

Agricultural grade gypsum can be used in many mushroom substrate recipes and as a soil amendment. Not all kinds of gypsum are the same. Certain kinds of pelleted gypsum contain a binding agent as well as lower calcium than agricultural grade gypsum does. When used in mushroom substrate, gypsum provides calcium and sulfur, which mycelium needs for healthy growth. Gypsum also acts as a pH buffer.

(Calcium content = 19.6%) (Sulfur content = 15.7%)

This sale is for one pound of gypsum

  • Model: msgcs100
  • Shipping Weight: 1lbs
  • 980 Units in Stock

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100% all natural products
Mushroom Substrate uses only 100% natural and organic products in our manufacturing process.

Our products do not contain any pesticides, herbicides heavy metals or anything else harmful.

This product was added to our catalog on Wednesday 31 July, 2019.