| 摘要 |
A cultivating and seeding machine is provided with a seeding unit and a tillage device and/or a land roller. The seeding unit is provided with a seeding actuator, the tillage device is provided with a tillage actuator and the land roller is provided with a land roller actuator. The seeding actuator regulates the sowing depth of the seeding unit, whereas the tillage and land roller actuators regulates the downward pressure of these two implements, respectively. A controller having a memory loaded with information for adjusting the working implements, controls the various actuators in response to these data records.
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