PROBLEM TO BE SOLVED: To provide a raising seedling method comprising making dry condition of the periphery and the center part of a tray almost equal to each other so as to aim at uniformizing the raising seedlings.SOLUTION: The raising seedling method comprises placing a tray 1 where seedlings (A) is planted on a water-permeable supporting table 3 so as to arrange the tray in such a formation as to make the center part three-dimensionally high, equalizing the water content of culture soil in a pot part 2 all over the tray 1 so as to uniformize the growth of the seedlings (A).COPYRIGHT: (C)2008,JPO&INPIT【課題】トレイの周囲と中央部の乾燥状態を同程度にすることで、育苗の均一化を図ることができる育苗方法を提供する。【解決手段】苗Aを植え込んだトレイ1を透水性支持台3上に載置することによって、3次元的に中央部を高くした形状に配置し、トレイ1全体としてポット部2の培地の水分を平均化し、これによって苗Aの生長が均一化する。【選択図】図2