PURPOSE:To carry out uniform watering, by taking out seedling boxes after germination piled on a germinating truck, one by one, sending the seedling boxes to a given stop position for transportation and watering the seedlings in the midst of shipping on a truck for green trees. CONSTITUTION:A device 3 for taking out seedling boxed is set in the vicinity of a starting end of a transporting device 2 of a roller conveyor type and a device 4 for shipping the seedling boxes is laid in the vicinity of the end. Rails 6 are installed at the side of the taking out device 3 and a germinating truck 7 is suspended at a given stop position of the rails 6. At the opposite side of the shipping device 4 rails 6' are laid and a truck 8 for green trees is suspended at a given stop position of the rails 6'. A watering device 9 is set on the top of the truck for green trees and watering is carried out during transshipment of seedlings boxes 99 from the germinating truck to the truck for green trees.
