PURPOSE: To sow rice seeds toward the same direction and make an interval between seedlings uniform by respectively providing the interior of flow passages for delivered seeds with a specific reversing part.

CONSTITUTION: Dropping chutes 18 formed into the shape of a wavy plate in which flow passages 21 of a width for flowing down one grain of rice seed 7 in the vertical direction are provided side by side are installed under a stripe sowing unit. Middle parts of the flow passages 12 are provided with steeper slopes 23 than those of the flow passages 21 and the slopes 23 are respectively provided with a reversing part 19 having upward directing erected hair. Thereby, the rice seeds are sown toward the same direction to always drop from the side of rachis-branches into stripe grooves and the interval between the buds put forth from the rice seeds is made uniform.