| Design and test of Codonopsis pilosula seedlings transplanter with ridge\|film mulching and soil\|covering in seedling rows |
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| DOI：10.7606/j.issn81000-7601.2020.03.38 |
| Key Words: Codonopsis pilosula transplanter opener film mulching soil\|covering on seedling rows |
| Author Name | Affiliation | | WANG Junzeng | College of Electromechanical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | SUN Wei | College of Electromechanical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | WANG Hucun | College of Electromechanical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | ZHANG Hua | College of Electromechanical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China | | LIU Xiaolong | College of Electromechanical Engineering, Gansu Agricultural University, Lanzhou, Gansu 730070, China |
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| Abstract: |
| In view of the problem that there is no machinery available for transplanting Codonopsis pilosula, a transplanter with the functions of ditching, seeding, ridging, shaping, film mulching, and soil\|covering in seedling rows was designed in combination with the cultivation mode of ridge\|film mulching and soil\|covering on seedling rows in consideration of dry stress\|resistant of Codonopsis pilosula in the arid area of the Northwest Loess Plateau. The key components of the prototype were analyzed and designed. The structure and working parameters of the devices such as opener with sharp angle and long airfoil, shaping and compaction, and soil covering over film were determined. The working mechanism of the core components was analyzed. Field experiments showed that seedling bury percentage of the designed transplanter was 4.1%; exposed seedling percentage was 2.6%; the qualified rate of planting was 92.0%; the qualified rate of planting depth was 87.5%; the qualified rate of covering soil thickness on the film edge was 95.9%; the qualified rate of soil covering width on the film edge was 96.3%; and the productivity was about 0.14 hm2·h-1. The field performance experiment indexes met the requirements of national and industrial standards, and the experiment results met the design requirements. |
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