| 摘要 |
PURPOSE:To omit a working space around a culture vessel and increase a cultivation area by floating setting plates onto the water surface of the culture vessel, providing water jetting ports at one end of the culture vessel and transferring the setting plates with the thrust of jet streams discharged from the water jet ports. CONSTITUTION:Setting plates 3 are floated on the water surface of a culture vessel 1 and water jetting ports (7a) and (7b) are arranged at one end of the culture vessel 1. The setting plates 3 are transferred with the thrust of jet streams (8a) and (8b) discharged from the water jetting ports. As a result, operation of harvesting, planting of seedlings, etc., can be carried out by one worker 9 without changing a working position at one end of the culture vessel. Thereby, a working space need not be ensured around both sides in the longitudinal direction of the culture vessel and around the end face on the opposite side and each culture vessel can be installed in close contact without any problem of work in installing the plural water culture vessels in a greenhouse. Consequently, the cultivation area can be increased to increase yield. |
