PROBLEM TO BE SOLVED: To make harvest work proper by properly untying the soil near root vegetable in a field according to a difference in hardness of the soil and a difference in working condition such as a difference in pulling-out resistance, and favorably pulling out and conveying the root vegetable.SOLUTION: This root vegetable harvester includes: a traveling part a soiler (37) for untying the soil near the root vegetable in the field while cutting and a pulling out and conveying device for pulling out the root vegetable whose near soil is untied by the soiler (37), and conveying the root vegetable. The soiler (37) includes: a blade part (37a) partly rushing into the soil and a mounting part (37b) to which the blade part (37a) is mounted, wherein the blade part (37a) is extended up and down, and the blade part (37a) is made different in shape between one end part (127) and the other end part (128) in the vertical direction, so that the blade part (37a) can be attached and detached in the opposite directions vertically.COPYRIGHT: (C)2013,JPO&INPIT【課題】 本発明は、土壌の硬軟の差異や根菜類の引き抜き抵抗の差異等の作業条件の差異に適応して、圃場の根菜類の近くの土壌を適正に解し、根菜類を良好に引き抜いて搬送して収穫作業の適正化を図ることを課題とする。【解決手段】 走行部と、圃場の根菜類の近くの土壌を切りながら解すソイラ(37)と、該ソイラ(37)により近くの土壌が解された根菜類を引き抜いて搬送する引抜搬送装置を設けた根菜類収穫機において、ソイラ(37)は、一部が土壌内に突入する刃部(37a)と、該刃部(37a)を取り付ける取付部(37b)を備え、刃部(37a)を上下に延設すると共に、刃部(37a)の上下方向の一端部(127)と他端部(128)で異なる形状とし、刃部(37a)を上下反対に向けて着脱可能に構成した。【選択図】図6