PROBLEM TO BE SOLVED: To allow an operator to visually observe conditions of chemical application for seedlings, to enable sure chemical application, and to further suppress dispersion of the amount of the applied chemical.SOLUTION: A riding type rice transplanter includes a planting implement 3 for planting the seedlings at the rear of a machine body, and a spare seedling feeder 7 for transporting spare seedlings from the front of the machine body to the rear of the machine body. Furthermore, the riding type rice transplanter includes a chemical application device 14 for applying the chemical to the spare seedlings Y in a transporting passage of the spare seedling feeder 7, seedling detection switches SW1 to SW4 for detecting the positions of the spare seedlings Y in the transporting passage of the spare seedling feeder 7 and a control part 30 for carrying out on/off control over driving of the chemical application device 14 based on the detection of the position of the spare seedlings Y with the seedling detection switches SW1 to SW4.COPYRIGHT: (C)2009,JPO&INPIT【課題】苗に対する施薬状況をオペレータが目視確認できるようにすると共に、確実な施薬を可能にし、さらには、施薬量のバラツキを抑制する。【解決手段】機体後部で苗を植付ける植付作業機3と、機体前方から機体後部まで予備苗を搬送する予備苗供給装置7とを備える乗用型田植機において、予備苗供給装置7の搬送経路で予備苗Yに薬剤を施薬する施薬装置14と、予備苗供給装置7の搬送経路で予備苗Yの位置を検出する苗検知スイッチSW1~SW4と、苗検知スイッチSW1~SW4による予備苗Yの位置検出にもとづいて施薬装置14の駆動をON/OFF制御する制御部30とを備える。【選択図】図1
