| 摘要 |
PROBLEM TO BE SOLVED: To increase a culture amount per area, by boring a great number of planting holes through the sides of a hollow pipe vertically stood as a culture tank, transplanting plants in the holes and cultivating. SOLUTION: A hollow pipe 2 provided with a great number of transplanting holes 5 and having the interior into which a nonwoven fabric is inserted as a medium 8 is vertically stood in a liquid storage tank 1 charged with a nutritive liquid. A liquid sending pipe 9 is installed from the bottom of the hollow pipe 2 to the top, the tip of an air sending tube 11 connected to an air pump 10 is set under the bottom, formed in a funnel shape, of the liquid sending pipe 9 to jet air. When the jet air changes into a great number of foams and rises in the liquid sending pipe 9, the nutritive solution 3 in the liquid storage tank 1 is nipped by the foams and sent to the highest part of the medium 8 is the hollow pipe 2 to grow plants 6 transplanted in the transplanting holes 5 of the hollow pipe 2. |
