<；P>；PROBLEM TO BE SOLVED: To provide a high speed dibbling mechanism for direct sowing, which can ensure a dibbling long side length in a constant range even in a high speed work condition, and can make a highly accurate dibbling form. <；P>；SOLUTION: Seeds are continuously dropped and supplied from the seed supply port 9 of an upper chute into a roll cover 3, and the seeds supplied into a seed-carrying groove 7 with a rotated dibbling roll 2 are carried to a seed-excluding port 10 along the roll cover 3, and are then dropped from the seed-discharge port 10 to a field in an agglomerative shape. Since a blowing pinhole 8 is arranged behind the seed-carrying groove 7 in the rotation direction of the dibbling roll 2, the blasting is started just after all the seeds are released from the seed-carrying groove 7, when the opening 11 of a blasting pipe 4 coincides with the blowing pinhole 8. Thereby, the blasted air from the blowing pinhole 8 hits to unreleased agglomerative seeds to enhance a seed-dropping speed. Thus, a dibbling long side length can be ensured in a constant range even in a high speed work condition. <；P>；COPYRIGHT: (C)2009,JPO&INPIT
