| 摘要 |
An agricultural tilling implement is described which is adapted to be connected to the rear of a tractor having a three-point hitch. The implement comprises an elongated tool bar which preferably has two attachments thereon, spaced from each other, for connection to the three-point hitch of the tractor. A plurality of tilling units are carried by the tool bar. Each tilling unit comprises a downwardly depending ripper member and two rotatable wheels adjacent the ripper member. The wheels are vertically adjustable and, preferably, are also adjustable inwardly and outwardly as well as forwardly and rearwardly. The wheels are adaptable to hold the soil firmly in the rows so that the ripper member does not disturb or injure the roots of growing row crops. Preferably the tilling units are also adapted to tow a secondary tiller unit.
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