Gypsum is one of those rare materials that perform in all three categories of soil treatment: an amendment, conditioner and fertilizer. It is a fast release source of sulfur and calcium. When dissolved it releases an equal proportion of calcium and sulfate. It increases calcium without effecting pH. Low in dust and easy to apply and doesn’t have to be worked into the soil, it can be applied directly to the surface. Just water it in after application to dissolve the pellets quickly. Gypsum loosens clay and compacted soil, improving the structure. OMRI listed

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1.5 Cups, 1 Quart


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