PROBLEM TO BE SOLVED: To enable cutting of a stem of crops by which vegetation is carried out, at a lower part and releasing the stem laterally from a lower part to an upper side.SOLUTION: A frame 3 mounted on a moving machine 2 includes: a lower cutting mechanism 5 which cuts the lower part of the stem S1 of a root crop S by which vegetation is carried out by rotating lower rotary blade 4 a release mechanism A which gives force to the upper part of the stem S1 to release the stem in the direction of moving machine body 2 by rotating a rotator Aa in the same direction with the lower rotary blade 4 and a driving mechanism 9 to drive a bottom cutting mechanism 5 and the release mechanism A.COPYRIGHT: (C)2012,JPO&INPIT【課題】植生されている作物の茎を下部で切断して、茎の下部から上側を側方へ放出できるようにする。【解決手段】 移動機体2に装着されたフレーム3に、下回転刃4を回転して植生されている根菜作物Sの茎S1の下部を切断する下切断機構5と、回転体Aaを下回転刃4と同方向に回転して茎S1の上部に移動機体2進行方向において側方へ放出する力を与える放出機構Aと、前記下切断機構5及び放出機構Aを駆動する駆動機構9とを備える。【選択図】図1