Soil Water opportunity monitoring: a gypsum block might be inserted into your soil, and its electrical resistance may be calculated to derive soil humidity.[forty eight] Gypsum occurs in in depth beds connected with other evaporite minerals (e.g., anhydrite and halite), specially in Permian and Triassic sedimentary formations; it is deposited https://www.propanraya.com/id/produk/eco-gypsum-ee-4050