This Is particularly valuable in parts liable to drought. The addition of gypsum can boost much better drainage and air circulation, which can aid root development and nutrient absorption. Gypsum occurs in substantial beds linked to other evaporite minerals (e.g., anhydrite and halite), especially in Permian and Triassic sedimentary formations; https://www.propanraya.com/id/produk/eco-gypsum-ee-4050