Abstract
Devices for seed planting and soil filling into cell trays were developed and tested to automate the operations of the seedling production by a robot. For the seed planting operation, a device using a reciprocating cell plate was developed. It is drawn and controlled by the robot, and plants coated seeds into a tray. The working rate was 4 times as that of manual operation, and seeding errors were extremely little. For the soil filling and covering operation, a self-propelled device having a fluted roll was developed which can fill the culture soil automatically into the cell trays only by pushing a starting button.
