PROBLEM TO BE SOLVED: To solve problems that a manufacturing cost rises when separate sensors are mounted in order to perform each control and an influence of reduction in accuracy of horizontal control is caused by vibration occurring due to change of movement direction of a seedling stand in a transverse feed control.SOLUTION: An end detection sensor 29 is provided. Based on detection of the movement end of the seedling stand 13 by the end detection sensor 29, controls of reciprocating movement and planting apparatus stop of the seedling stand 13, operation start of a chemical spraying apparatus 36, etc., are carried out and the horizontal control of the planting apparatus 12 by the horizontal control part of the planting apparatus is changed by a movement end control part.COPYRIGHT: (C)2013,JPO&INPIT【課題】各制御を行うために別々のセンサを設けると製造コストが高くなり、また横送り制御における苗載せ台の移動方向の切換えに伴い生じる振動などで、水平制御の精度が下がるなどの影響が生じる。【解決手段】終端検出センサ29を設け、終端検出センサ29による苗載せ台13の移動終端の検出に基づき、苗載せ台13の往復移動及び植付装置停止、薬剤散布装置36の作動開始などの各制御を行うと共に、植付装置水平制御部による植付装置12の水平制御を移動端制御部で変更するようにした。【選択図】図2
