To prevent the trouble of the rotting of a seed immediately before sprouting caused by the oxygen deficient state of the seed soaked for a long period in the undrained rainwater collected in a tilled furrow for forming a sowing bed of seeds of paddy rice plant after the direct sowing work on a dried paddy field by a partial tilling and direct-sowing apparatus.

The apparatus has a plurality of tillage tines 21 for forming a tilled furrow D. At least two of the tines 21 are attached in a manner directing the tip end of the lateral blade outward at the right and left sides relative to the axial direction of the tilling shaft 22, and the tip end of the lateral tooth (b) of the other multiple tillage tines 21 are directed inward at the right and left sides relative to the axial direction of the tilling shaft 22.