PROBLEM TO BE SOLVED: To provide a seeding machine constituted to achieve watering a seedling box with a simple structure.SOLUTION: The seeding machine includes a watering part B for watering in such a manner that the seedling box 1 is immersed in water after bed soil is supplied to the seedling box 1 conveyed along a conveyance route X at a bed soil supplying part. The watering part B includes an immersion tank 5 for storing water, and an immersion means Q for sending the seedling box 1 so that the bottom wall 1b of the seedling box 1 comes at a lower level than the water surface L of the immersion tank 5.COPYRIGHT: (C)2013,JPO&INPIT【課題】育苗箱に対する灌水を簡単な構成で実現する播種機を構成する。【解決手段】搬送経路Xに沿って搬送される育苗箱1に床土供給部で床土を供給し、この後に育苗箱1に浸水させる形態で灌水を行う灌水部Bを備えた。この灌水部Bは、水を貯留する浸水槽5と、育苗箱1の底壁1bを浸水槽5の水面Lより低いレベルに送り込む浸水手段Qとを備えている。【選択図】図2