| 摘要 |
PURPOSE:To provide a culture tool comprising new structure improved in order to better balance of supply of water and nutrient and oxygen feed to root of plant. CONSTITUTION:A water absorption controlling pipe 6 having both open ends, comprising a water impermeable pipe with a hollow part packed with a water absorbing material 5 is combined with an inner container 1 provided with a great number of rooting small holes 11 in such a way that a top opening part 61 thereof is laid in a dented part 2 storing a rooting material of the inner container 1 and a bottom opening part 62 is set at the bottom of the inner container 1. The water impermeable pipe and the water absorption controlling pipe are suspended in a liquid tank 7 charged with a culture solution L. An amount of water absorption in the dented part 2 of rooting material in the inner container 1 can be regulated by controlling height and position of the dented part 2 of rooting material of the top opening part 61 of the water absorption controlling pipe 6, controlling contact ratio of the bottom opening part 62 with water or the culture solution L and controlling both the top and the bottom opening parts 61 and 61. |
