| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that COis conventionally applied using only a COsensor to accelerate photosynthesis of cultivated crops in a facility, but the application of COis started when the sensor senses a set value or less regardless of the temperature and ventilation amount of the facility, and applied COflows out of the facility under the influence of material diffusion due to a concentration gradient with an increase in the ventilation amount of the facility along with a temperature rise, which results in difficulty in obtaining a high concentration COenvironment in the facility, causes the application waste of COand is unfavorable to the environment.SOLUTION: A newly employed temperature sensor determines the ventilation amount of the facility from temperature, and when the ventilation amount is low, COcan be applied to attain a high concentration environment. COcan be applied under environmentally-friendly and optimal environment conditions with the reduced application waste because of being uninfluenced by COconcentration in the facility only with the COsensor and being hardly influenced by material diffusion due to the concentration gradient. An absolute photosynthetic speed is thereby increased to achieve an optimal growth environment for growth acceleration. |
