Calcium sulfate improves the structure of heavy clay soils.
An excellent source of calcium containing 32% calcium oxide.
No effect on soil pH.
Contains 12% sulfur.
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Gypsum is a very important organic soil amendment.
This is a replacement for LIME.
Best applied before planting and/or before flowering for best results.
1/2 - 1 cup per cubic foot of soil as part of a complete nutrient and mineral program.
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