PROBLEM TO BE SOLVED: To provide a work vehicle which can utilize a lower space of a preliminary seedling frame efficiently and can arrange a device or a member in the lower space of the preliminary seedling frame without interference with a depth sensor.SOLUTION: The work vehicle includes: a material conveyance device 600 in a front part of a travel vehicle body 2 a fertilization device in a rear part of the travel vehicle body 2 a first field information detection member 720 detecting field information on the travel vehicle body and a control device changing a fertilization amount of the fertilization device based on the field information detected by the first field information detection member 720. The first field information detection member 720 is arranged on a lower side of the material conveyance device 600. A travel member is arranged on the travel vehicle body 2. The first field information detection member 720 is positioned on a machine body outer side and on a machine body front side with respect to the travel member 10. A material placement member 603 is arranged on rotation arms 601, 602 of the material conveyance device 600. A rotation restriction member 605 is arranged for, when the rotation arms 601, 602 are rotated, restricting rotation to the first field information detection member 720.SELECTED DRAWING: Figure 21COPYRIGHT: (C)2017,JPO&INPIT【課題】予備苗枠の下方空間を有効に活用でき、深度センサに干渉することなく予備苗枠の下方空間に装置や部材を配置可能な作業車両を提供する。【解決手段】走行車体2の前部に資材搬送装置600を設け、走行車体2の後部に施肥装置を設け、走行車体に圃場情報を検出する第1圃場情報検出部材720を設け、第1圃場情報検知部材720が検出する圃場情報から施肥装置の施肥量を変更する制御装置を設けた作業車両において、資材搬送装置600の下側に第1圃場情報検出部材720を設け、走行車体2に走行部材を設け、第1圃場情報検出部材720は走行部材10よりも機体外側で且つ機体前側に位置し、資材搬送装置600の回動アーム601,602に資材載置部材603を設け、回動アーム601,602を回動させるときに第1圃場情報検出部材720への回動を規制する回動規制部材605を設けて構成する。【選択図】図21
