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* Gypsum is the common name of hydrated calcium sulphate. Gypsum can be used as a Sulphur or calcium fertiliser, or more commonly as a soil amendment breaking down the clay barriers and minimising surface crusting. It improves the soil structure, reduces surface crusting, aids water absorption and encourages deep root growth promoting plant vigor.
* Gypsum can be used as a calcium fertiliser, however it has no effect on pH. If the pH does not need amending an application of gypsum can be effective for several years.
* Analysis: Gypsum 90 – 95%