| 摘要 |
PROBLEM TO BE SOLVED: To prevent wave generation caused by agitation of a farm field surface and water by a land leveling rotor, when the land leveling rotor is brought to vertically move in a farm field having somewhat a deep depth, and prevent muddy water flow from knocking down and washing away planted seedlings in adjacent rows.SOLUTION: A seedling planting device 9 is connected through a vertically rotative lift link 14 by a lift cylinder 13, while in the front side of the seedling planting device 9, a land leveling rotor 21 comprising a center rotor 19 for land leveling the soil surface in the front side of a center float 3 and a side rotor 20 for land leveling the soil surface in the front side of a side float 4 is constituted to be liftably operable against the seedling planting device 9, and the land leveling rotor 21 is constituted to be able to raise the front center rotor 19 to a higher position to the rear side rotor 20 by operating the same to rise above a certain position. |
