| 摘要 |
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. |
