PROBLEM TO BE SOLVED: To provide a seedling transplanter which calculates the area of a cultivated field by the travel of the body of the seedling transplanter and calculates the degree of progress in the transplanting work of seedlings, the amount of use of the seedlings and fertilizer, a period required for the work, etc. from the calculated area.SOLUTION: The seedling transplanter is provided with: a rotation detection member 1 which detects the drive rotation of rear wheels 2 and 2 and a seedling planting device 4 provided to a traveling vehicle body 3 which calculates a travel distance from the number of revolutions of the rear wheels 2 and 2, which is detected by the rotation detection member 1. On the basis of the result of the detection by the rotation detection member 1 and the result of detection by a steering detection member 6 which detects steering turning of front wheels 5 and 5 provided at the front portion of the traveling vehicle body 3, the travel distance B of each planting travel row and a fold-back turning distance C at the end of each planting travel row are calculated, and a seedling planting row area E is calculated from the travel distance B and the fold-back turning distance C.COPYRIGHT: (C)2012,JPO&INPIT【課題】機体の走行により圃場の面積を算出し、算出した面積から苗の植付作業の進捗具合、苗や施肥肥料の使用量、作業に要する時間等を算出可能な苗移植機を提供する。【解決手段】後輪2,2の駆動回転を検出する回転検出部材1を設け、回転検出部材1が検出する後輪2,2の回転数から走行距離を算出する走行車体3に苗植装置4を設けた苗移植機において、回転検出部材1の検出結果と、走行車体3の前側に設ける前輪5,5の操向旋回を検出する操向検出部材6の検出結果によって、各植付走行条の走行距離Bと、植付走行条の端部での折返旋回距離Cを算出し、走行距離Bと折返旋回距離Cから苗植付条面積Eを算出する構成とする。【選択図】 図4
