| 摘要 |
PROBLEM TO BE SOLVED: To provide a land roller capable of uniformly preparing widely spread soil or capable of uniformly treating wheat plants. SOLUTION: This land roller 1 has a transversely extended long frame 10, press roller units 20 which are supported on the frame 10 so as to be rotatable, and a coupler 30 through which the land roller is coupled with, for example, a tractor. Each of the press roller units 20 has a press roller 21, arms 22 which are attached to an support axis 14 of the frame 10 so as to be rotatable and are each arranged at both the ends of the press roller 21, and a support shaft 23 which connects to both the arms 22 and supports the press roller 21 so as to make the press roller 21 freely rotate. The press roller units 20 are transversely arranged in two or more rows perpendicular to the traveling direction and dividedly positioned in each of the rows. Further, the press roller units 20 positioned in the front and rear rows are zigzag arranged so as to uniformly press the soil.
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