PROBLEM TO BE SOLVED: To provide a rice transplanter which can avoid a high center of gravity, has good visibility, and has a compact preliminary seedling tray.SOLUTION: The preliminary seedling tray 14 has a frame portion A to which a seedling-scooping plate B for supporting preliminary seedlings is detachably attached. Receiving metal fittings 67D for receiving and holding the front end portion of the seedling-scooping plate B are disposed on the front end side of the frame portion A, and semi-circular portions 67G are disposed on the rear end side of the frame portion A. The upper end horizontal portion 70A of the seedling-scooping plate B is fit and attached to fix an attachment posture attached to the frame portion A of the seedling-scooping plate. The frame portion A is supported in a center impeller type on the front and rear sides of the machine frame.COPYRIGHT: (C)2010,JPO&INPIT【課題】高重心化を回避し、視認性のよい、コンパクトな予備苗載せ台を備えた田植機を提案することにある。【解決手段】予備苗載せ台14を、予備苗を支持する苗スクイ板Bを着脱自在に取り付ける枠フレーム部Aを備えて構成してある。枠フレーム部Aにおける前端側に苗スクイ板Bの前端部を受け入れ保持する受け金具67Dと、枠フレーム部Aにおける後端側に半円弧状部67Gを設けて苗スクイ板Bの上端水平部70Aを嵌め込み装着して、苗スクイ板の枠フレーム部Aに取り付ける取付姿勢を固定させ、枠フレーム部Aが機体前部側と機体後部側とにおいて両持ち支持されている。【選択図】図11