PROBLEM TO BE SOLVED: To provide a hydroponics method capable of increasing the content of a specific component of a plant.SOLUTION: In a predetermined period before harvesting (period immediately before harvesting) of a hydroponics period of a plant, hydroponics of the plant is performed by using a specific component aqueous solution (specific mineral aqueous solution) produced by allowing water to contain only the specific component.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】植物の特定成分の含有量を高めることが可能な養液栽培方法を提供する。【解決手段】植物の養液栽培期間のうち、収穫前の所定の期間(収穫直前期)において、水に特定成分のみを含有させた特定成分水溶液(特定ミネラル水溶液)を用いて前記植物の養液栽培を行う。【選択図】図1