PROBLEM TO BE SOLVED: To appropriately form side parts of a list while capable of changing the shape of the list.SOLUTION: The tillage apparatus includes: a plowing rotor a cover 11 for covering the upper part of the plowing rotor and a flat plate body 19 having flexibility and connected to the rear end of the cover 11 so as to suspend towards the rear part of the plowing rotor. The tillage apparatus further includes a pair of left/right first support bodies 25 at the left/right-directional central part in the rear side of the flat plate body 19 across upper-end-side support points S1 in the upper end side thereof and lower-end-side support points S2 in the lower end side thereof for regulating the rearward movement of the flat plate body 19. Each of the pair of left/right first support bodies 25 is configured to change the position of the upper-end-side support points S1 of the flat plate body 19 in the width direction of the flat plate body 19.COPYRIGHT: (C)2014,JPO&INPIT【課題】畝の形状を変更することができながら、畝の側部も適切に成形すること。【解決手段】耕起ロータと、その耕起ロータの上部を覆うカバー11と、可撓性を有し、耕起ロータの後部に垂れ下がるようにカバー11の後端部に連結された平板体19とが備えられ、平板体19の後方側で左右方向中央部には、その上端側における上端側支持点S1とその下端側における下端側支持点S2とに亘って配置され、平板体19の後方側への移動を規制する左右一対の第1支持体25が備えられ、左右一対の第1支持体25の夫々は、平板体19の上端側支持点S1を平板体19の横幅方向に位置変更自在に構成されている。【選択図】図5
