| 摘要 |
There is provided a frame having on one end thereof means, such as a chisel plow, for scarifying the earth. Near the rear portion of the frame, in a position behind the plow, means is located for pulverizing earth thrown up by the plow. The pulverizing means may include one or more reel structures, each of which has a plurality of horizontally-extending, radially disposed blades secured to and rotatable with one or more horizontal axes. In addition, adjusting means are provided for rotating the pulverizing means in a limited arc around a portion of the rear of the plow to increase or decrease the depth of operation of the pulverizing means. If desired, a leveling blade may be secured to a portion of the pulverizing means to provide additional smoothing to the earth over which the apparatus is drawn.
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