PROBLEM TO BE SOLVED: To easily restrict to reduce the total spray amount of chemicals sprayed to a field by devising an object to be monitored to control delivery operation in a spraying apparatus.SOLUTION: This rice transplanter includes a driving case 14 mounted with a crossfeed driving part and a longitudinal feed driving part inside. A longitudinal feed driving shaft 36 is projected from the lateral ends of the driving case 14 to provide longitudinal feed arms 38, and driven arms 41 of longitudinal feeders 21 provided on the side of a laterally reciprocated seedling placing base 20 are driven by the longitudinal feed arms 38. A longitudinal feed detecting sensor 50 is provided for detecting the operation of the longitudinal feed arms 38, and the operation of the spraying apparatus is controlled based on the operation of the longitudinal feed detecting sensor 50.COPYRIGHT: (C)2013,JPO&INPIT【課題】散布装置での繰り出し作動を制御するために監視すべき対象を工夫して、圃場に散布される薬剤の総散布量が少なくなるように制限し易くする。【解決手段】横送り駆動部、及び縦送り駆動部を内装する駆動ケース14を備え、駆動ケース14の左右方向の端部から縦送り駆動軸36を突出させて縦送りアーム38を設け、往復横移動する苗のせ台20側に備えた縦送り装置21の被動アーム41を縦送りアーム38で駆動するように構成し、縦送りアーム38が作動したことを検知する縦送り検知センサ50を備え、その縦送り検知センサ50の作動に基づいて散布装置の作動を制御するように構成した。【選択図】図5
