PROTECTED CULTIVATION SYSTEM USING A MATERIAL FOR INDUCING A PRECIPITATION

摘要

A water-curtain cultivation system using a precipitation inducing material includes a house, a water-curtain forming pipe, an underwater supply means, and a precipitation inducing means. The house is composed of an internal house erected from the ground surface to form the internal space and an external house installed away from the outer side of the internal house to have a water-curtain space while covering the internal house. The water-curtain forming pipe installed on the upper side of the water-curtain space in the longitudinal direction of the internal house sends underground water on the outer surface of the internal house to form a water curtain. The underground water supply means supplies underground water to the water-curtain forming pipe by pumping underground water from a water pumping well positioned near to the house. The precipitation inducing means arranged close to a screen section formed on the water pumping well induces the precipitation of iron/manganese. According to the same, the water-curtain cultivation system using the precipitation inducing material induces the precipitation of iron/manganese by arranging the precipitation inducing means close to the screen section formed on the water pumping well, thereby being capable of decreasing the concentration of iron or manganese dissolved in underground water. Therefore, the water-curtain cultivation system using the precipitation inducing material can prevent a clogging phenomenon in a screen formed on the water pumping well or a water-intake pump.