Basic Research of an Environmental Control System for Stable and Rapid Mass-Production of Quality Transplants under Artificial Light in Closed System

我们的研究已经指出，封闭transplant production system with artificial light andcontrolled environments is suitable for producing high quality transplants in a reduced time periodwith reduced resource and environmental pollution. The production period could be reduced by 30%.The water consumption in The closed was about 10% of that of open system （i.e. greenhouse）Percentage of CO - D22 - D2 fixed by transplants through photosynthesis over CO - D22 - D2 supplied intothe closed system was about 90%.每transplant was about 0.4 MJ and its cost关于1.5 Yen. This cost is relatively low compared with the price of vegetable transplants（50-100 Yen）. Then，the closed system with artificial lighting can be used for commercial production of value-addedtransplants.更多研究是必要的，以实践物理反应transplants toenvironments and the energy/mass balance of the closed system。

Our research showed that the closed transplant production system with artificial light and controlled environments is suitable for producing high quality transplants in a reduced time period with reduced resource and environmental pollution. The production period could be reduced by 30%. The water consumption in the closed was about 10% of that of open system (i.e. greenhouse). Percentage of COィイD22ィエD2 fixed by transplants through photosynthesis over COィイD22ィエD2 supplied into the closed system was about 90%. Energy consumption per transplant was about 0.4 MJ and its cost was about 1.5 Yen. This cost is relatively low compared with the price of vegetable transplants (50-100 Yen). Then, the closed system with artificial lighting can be used for commercial production of value-added transplants. More research is needed for examining the physiological responses of transplants to environments and the energy/mass balance of the closed system.