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Down To Earth Garden Gypsum 5lb. (AUN) Silicon Commercial growers find better resultsDown To Earth Garden Gypsum Calcium Sulfate Garden Gypsum will improve the physical condition of landscape, lawn and garden soils while adding the essential nutrients calcium and sulfur. Commonly used to reduce soil compaction and increase drainage in heavy clay soils, gypsum is also used to help remediate and revitalize sodic or saline soils. 5 lb. Box OMRI Approved (Organic Materials Review Institute) CDFA Approved (Registered Organic Input Material)
