| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hydroponics apparatus sufficiently supplying oxygen to plants with low-cost equipments. <P>SOLUTION: This oxygen supply type hydroponics apparatus has a hydroponics tank holding planting holders in which many plants are planted, in a box type cultivation tank having a culture solution put therein and an opened upper surface. The planting holders are held on the top of a culture solution surface in parallel to the culture solution surface at proper intervals. At the intervals many lightweight water supply small balls floatable on the culture solution are crowded with each other and superposed on each other in a multiple lamination. Capillaries raising the surface solution of the culture solution are formed between the water supply small balls adjacent to each other and the roots of the plants extend to the capillaries from the lower surface of the planting holder. <P>COPYRIGHT: (C)2003,JPO |
