PROBLEM TO BE SOLVED: To provide a seedling transplanter that enables a stable growth of a seedling by securing a predetermined amount of fertilizer for a seedling fertilized by a fertilizing device and planted by a planting device.SOLUTION: A seedling transplanter is configured to be able to travel on a farm, in which a vehicle body includes: a planting device 4 for planting a seedling on a farm a fertilizing device 5 for fertilizing the seedling planted by the planting deice 4 and a fertilizing amount adjuster device for changing and adjusting the amount of fertilizer by the fertilizing device 5. There is provided a loaded seedling amount detecting member 53a for detecting the amount of seedlings loaded on the planting device 4, which enables controlling an increase and decrease of the fertilizer by the fertilizing amount adjuster device based on the amount of seedlings detected by the loaded seedling amount detecting member 53a in order to secure the amount of fertilizer corresponding to the number of seedlings per a seedling root.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】施肥装置によって施肥しつつ植付装置が植付けた苗株中の各苗について、所要の施肥量を確保して安定生育を可能とする苗移植機を提供する。【解決手段】苗移植機は、圃場に苗を移植する植付装置4と、前記植付装置4による植付苗に施肥する施肥装置5と、前記施肥装置5の施肥量を変更調節する施肥量調節装置とを走行車体に備えて圃場走行可能に構成され、前記植付装置4の積載苗量を検知する積載苗量検知部材53aを設け、前記積載苗量検知部材53aが検知した苗量に合わせて前記施肥量調節装置により施肥量を増減制御することによって苗株の苗本数に応じた施肥量の確保を可能とする。【選択図】図1