The present invention relates to a nutrient solution supply system having a calcium nutrient solution manufacturing function, comprising: a nutrient solution tank in which water is initially stored and provided with an outlet and an inlet; a pipeline connecting the outlet and the inlet; a circulation pump provided in the pipeline to circulate the water of the nutrient solution tank through the water outlet and circulate to be received through the water inlet of the nutrient solution tank; It is provided or connected to the pipeline and is connected to a dissolver and the nutrient solution tank, which is formed to dissolve a calcium salt in water circulated by the circulation pump to produce a calcium nutrient solution, and receives and stores the calcium nutrient solution in which the calcium salt is dissolved, It may be configured to include a nutrient solution supply tank for supplying the calcium nutrient solution to the cultivation bed.
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