PROBLEM TO BE SOLVED: To provide a direct sowing machine with which a treatment at a headland and a tamping operation at the corner of a field can sufficiently be carried out when a fertilizer applicator and a sowing apparatus are removed from the direct sowing machine and a tilling operation is performed. SOLUTION: In this direct sowing machine 1 in which a rotary tilling apparatus 2 is detachably and integrally equipped with the sowing apparatus, roller frames 15 supporting tamping rollers 5 at the rear are installed in the longitudinal direction at both sides of the rotary tilling apparatus, the roller frames are constituted of main frames 15a made into a pipy form and sliding frames 15b slidably attached to the main frames and the tamping rollers are adjustable to longitudinal positions.
