CARBON DIOXIDE FERTILIZING TO PLANT USING HIGHLY SELECTABLE SEPARATION MEMBRANE OF CARBON DIOXIDE

PROBLEM TO BE SOLVED: To provide a method and a system by which carbon dioxide can efficiently and safely be supplied to plants without using materials dangerous to handle and installing adjusting devices. SOLUTION: This system has a carbon dioxide condenser equipped with a membrane capable of selectively separating carbon dioxide, a device for supplying a compressed air to the carbon dioxide condenser and a means for supplying the air in which carbon dioxide is enriched from the carbon dioxide condenser to the plants in a facility space for raising the plants, in the supplying method which is for supplying the air in which carbon dioxide is enriched to the plants and is characterized by making the air permeate the membrane capable of selectively separating carbon dioxide and preparing the air in which carbon dioxide is enriched and the system for raising the plants equipped with the facility space for raising the plants sectioned from the outside in which the plants are raised.