Growth state estimation apparatus, plant management system, growth state estimation method, plant management method, and program

A growth state estimation method comprising:

• acquiring a carbon dioxide concentration at a first time point in a plant factory and a carbon dioxide concentration at a second time point after the first time point, detected by a sensor provided in the plant factory;
• acquiring a supply amount of carbon dioxide supplied from the first time point to the second time point in the plant factory via carbon dioxide supply equipment having a tank for storing carbon dioxide;
• identifying a consumption amount of carbon dioxide consumed by a plant being cultivated in the plant factory from the first time point to the second time point, based on the carbon dioxide concentration at the first time point, the carbon dioxide concentration at the second time point, and the supply amount of carbon dioxide;
• and
• estimating a growth state of the plant based on relationship information indicating relationship between the consumption amount of carbon dioxide and the growth state of the plant in the plant factory, and the consumption amount identified.

A non-transitory computer readable medium having recorded thereon a program for, when executed by a computer, causing the computer to perform:

• acquiring a carbon dioxide concentration at a first time point in a plant factory and a carbon dioxide concentration at a second time point after the first time point, detected by a sensor provided in the plant factory;
• acquiring a supply amount of carbon dioxide supplied from the first time point to the second time point in the plant factory via carbon dioxide supply equipment having a tank for storing carbon dioxide;
• identifying a consumption amount of carbon dioxide consumed by a plant being cultivated in the plant factory from the first time point to the second time point, based on the carbon dioxide concentration at the first time point, the carbon dioxide concentration at the second time point, and the supply amount of carbon dioxide;
• and
• estimating a growth state of the plant based on relationship information indicating relationship between the consumption amount of carbon dioxide and the growth state of the plant in the plant factory, and the consumption amount identified.