Water Retaining Agent is a kind of new functional water absorbent polymer, It contains lots of hydrophilic groups and excellent molecule structure. It can absorb hundred times of water of its own weight in a short time, and release afterwards slowly and absorb repeatedly. Therefore, it can form a miniature reservoir around the plant’s root, keep a moist environment and develop water and fertilizer retaining capacity of soil effectively, increase using rate of water and fertilizer, improve the structure and ventilation of soil, create a good growing environment for the plant.The Water Retaining Agent is acrylate / acrylamide copolymer. It is produced by advanced equipment and unique techniques; therefore the product’s capacity becomes more excellent. The product’s absorbing rate is high, and the gel is firm after absorbing water. It can be used repeatedly under the soil’s pressure, and keep the soil ventilated and keep the soil from hardening.