PROBLEM TO BE SOLVED: To provide a land-leveling float structure of a paddy field implement, capable of preventing a mud-pushing action even by a land-leveling float having a width corresponding to the transplanting width of three or more rows, capable of reducing the influence on already transplanted seedlings, hardly forming a float-passing trace of the land-leveling float on the field, and enabling the transplantation to be carried out well.SOLUTION: The land-leveling float 11 having the width L corresponding to the transplanting width of the three or more rows is installed, and a belt-shaped land-leveling part A exhibiting a belt shape along the width direction is formed over the whole length or nearly the whole length in the width direction at the bottom face of the land-leveling float 11. A center mud-taking-in recessed part 23 for taking in the mud is formed in the bottom face of the land-leveling float 11 at the right and left center part so as to be directed rearward from the front edge of the bottom face.COPYRIGHT: (C)2010,JPO&INPIT【課題】3条以上の植付幅に相当する横幅を有する整地フロートであっても、泥押しを抑制できて、既植え苗に対する影響を抑え、かつ、整地フロートのフロート通過跡が圃面上に形成され難く、植付が良好に行われる水田作業機の整地フロート構造を提供する。【解決手段】3条以上の植付幅に相当する横幅Lを有する整地フロート11を設け、整地フロート11の底面における横幅全長又は略全長に亘って、横幅方向に沿った帯状を呈する帯状整地部Aを形成し、整地フロート11の底面における左右中央部で底面の前端から後方に向かって、泥土を取り込む中央側泥取り込み凹入部23を形成してある。【選択図】図6