To obtain a device which can mechanically stuff long size farm products flank to flank and which is simple in the structure and excellent in reliability in the movement, by providing a turning means of a receiving plate on the way of the hauling route or the picking-up position so as to turn the directions of the long size farm products on the receiving plate to respectively specified directions in every receiving plate.

A specified number of free trays 4 are sent in respectively free directions into a collection part and held in these positions by stoppers. In this stage, a rotary base 3033 is raised and the free trays 4 are rotated by a servo-motor 3036. The rotary base 3033 is brought to a stop when the iron plate 401 at the bottom of tray has been detected by a metal-sensitive sensor 3035 installed at a specified position in every rotary base device 303, and respective directions are given to respective trays 4 and the directions of the long size farm products are decided. Then connection of respective stoppers is released and the free trays 4 are transferred to the picking-up position while holding these relation without changing the directions.