Earth-up weeding device and method and sweet potato planting method
The invention discloses an earth-up weeding device. The device comprises a middle coulter, a left coulter, a right coulter, a pull handle, a coulter fixing mechanism and a pull handle fixing mechanism. The middle coulter is fixed to the front end of the coulter fixing mechanism, the left coulter and...
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Format: | Patent |
Sprache: | chi ; eng |
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