... available; Products introduction:DEMI crystal soil is a novelty hi-tech products, it is water absorbent polymer, which is able to absorb ... time, to release water gradually to supply the planting requirement. it contains fertilizing components like nitrogen, phosphor, potassium and other ... a new type of green environmental material2) It's non-toxic, odorless and clear3) It can absorb water up to 50 - ...