PROBLEM TO BE SOLVED: To provide a method for promoting plant growth in which stress that a plant suffers in transplantation is lightened and can promote growth of the plant after transplantation, or a method for promoting plant growth capable of improving the root-taking rate of a plant after transplantation.SOLUTION: A method for promoting plant growth comprises: a bubble contacting step of bringing aqueous solution including bubbles having a diameter of 1 μm or less into contact with a plant； and a planting step of planting the plant which has been brought into contact with aqueous solution including bubbles to a transplanting area.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】移植時に植物が受けるストレスを軽減させ、移植後の植物の生長を促進できる植物生長促進方法を提供すること。又は、移植後の植物の活着率を向上させることが可能な植物生長促進方法を提供すること。【解決手段】植物生長促進方法は、直径１μｍ以下の気泡を含む水溶液を植物に接触させるバブル接触ステップと、気泡を含む水溶液に接触させられた植物を、移植先に植える植付ステップと、を備える。【選択図】図１
