Powdered gypsum Description Product Description Powdered gypsum Contains 20% calcium (Ca) et 10% de sulfer (S). Soil correction for lawn, flower beds and vegetable garden. Categories: Nuway, Soil correction Tags: Nuway, Powdered gypsum, Soil correction Find a retailer Related Products Spring LAWN fertilizer 22-0-14 Read More Spring Lawn Fertilizer Read More Summer LAWN fertilizer Read More Fall lawn fertilizer 7-0-21 Read More