|発明の名称||PLANT PRODUCTION METHOD|
PROBLEM TO BE SOLVED: To provide a plant production method capable of controlling a weight of plants to be harvested to a desired range (in specification) even when there is variation of growth (growth speed) of plants in a plant factory or the like.
SOLUTION: The plant production method comprises at least: a greening step for disseminating seeds of a plant group formed of at least one plant, causing to sprout and grow for acquiring young seedlings; a seedling raising step for transplanting the young seedlings to a seedling raising chamber for causing the young seedlings to grow, for acquiring fix planted seedlings; and a main cultivation step for transplanting the fix planted seedlings and causing to grow, then harvesting the fix planted seedlings. For each plant forming the plant group, pieces of data of a weight at plural time points in the seedling raising step are collected, and based on the collected weight data, a relational expression between a total cultivation period which is a total period of the greening period, the seedling raising period and main cultivation period, and the weight of the plant group, is generated, then, based on the relational expression, for the plant group, the total cultivation period is adjusted so that, a ratio of the plants having a weight in a prescribed range out of the harvested plants, is optimized.
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