PROBLEM TO BE SOLVED: To provide a riding-type rice transplanter that allows for a smooth loading work of mat-like seedlings to a preliminary seedling tray.SOLUTION: A riding-type rice transplanter includes preliminary seedling trays 31, 32 on which mat-like seedlings to be supplied to a seedling tray can be loaded. The preliminary seedling trays 31, 32 includes seeding retaining members 43, 44 that can be switched between an action state of capable of receiving the mat-like seedlings loaded on the preliminary seedling trays 31, 32 and a non-action state of incapable of receiving the mat-like seedlings loaded on the preliminary seedling trays 31, 32 by being stored in the preliminary seedling trays 31, 32.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】予備苗載せ台に対する円滑なマット状苗の載置作業が可能な乗用型田植機の提供。【解決手段】苗載せ台へ補給するマット状苗を載置可能な予備苗載せ台３１，３２が備えられている。予備苗載せ台３１，３２は、予備苗載せ台３１，３２に載置されたマット状苗を受け止め可能な作用状態と、予備苗載せ台３１，３２に格納されて予備苗載せ台３１，３２に載置されたマット状苗を受け止め不能な非作用状態と、に切換可能な苗止め部材４３，４４を有する。【選択図】図２
