| 摘要 |
A sowing unit comprises a seed tank and a shaft with sowing reels fixed thereon. The bottom of the tank has sowing windows which are overlapped by the shaft with reels which is in oscillation movement with an angle 60°. In doing so the sowing reels at the periphery are provided by six equidistant axial grooves of three sizes by two for large seeds, for those middle by size thereof and for small seeds, arranged both as adjacent, or as opposite, and have three variants of mounting with an angular pace of 120° such that each of the pairs of similar grooves at the edge oscillation positions is alternatively disposed in the tank and out of the tank. |
