| 摘要 |
PROBLEM TO BE SOLVED: To provide a watering device for supplying suitable water to a plating pot, at the root of a plant. SOLUTION: The suitable water-supplying device is provided by utilizing a thin wooden strip cut out along natural straight grain which has a characteristic of elongating by having moisture and contracting by drying, and watering a water feeding fiber tape fixed at the tip end of a plate spring which faces to two watering fiber tapes absorbing water by a capillary phenomenon in a buried case. When the water content of the soil in the planting pot becomes high, the moistened wooden strip pushes a plate spring to stop the watering, and when the water content in the soil starts drying, the wooden strip dries and contracts, and the watering tape starts absorbing water to supply a suitable amount of water. COPYRIGHT: (C)2004,JPO |
