| Design and test of a compound machine for fertilization, mulching and soil covering in ridge\|furrow planting of melon |
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| DOI：10.7606/j.issn.1000-7601.2020.05.34 |
| Key Words: furrowing and mulching fertilization and soil covering multiple operation machine ridge\|furrow planting of melon design experiment |
| Author Name | Affiliation | | LIU Dejiang | Nanjing Research Institute for Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, Jiangsu 210014, China | | GONG Yan | Nanjing Research Institute for Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, Jiangsu 210014, China | | WANG Guo | Nanjing Research Institute for Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, Jiangsu 210014, China | | MIU Youyi | Nanjing Research Institute for Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, Jiangsu 210014, China | | CHEN Xiao | Nanjing Research Institute for Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, Jiangsu 210014, China | | ZHANG Xiao | Nanjing Research Institute for Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, Jiangsu 210014, China | | LU Xinyu | Nanjing Research Institute for Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing, Jiangsu 210014, China |
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| Abstract: |
| A machine for furrow\|ditching, fertilization, and mulching in melon farming was designed. The soil\|covering compound operation machine breaks through technical difficulties such as deep application of chemical fertilizers, energy conservation, and reduction of ditching components, non\|destructive mulching at the bottom of the ditch, and can realize deep application of fertilizers, ditching, ditch\|bottom mulching, as well as mechanized double operation of covering soil with film. The machine consisted of a frame, a three\|point suspension mechanism, a transmission mechanism, a ditching ridge mechanism, a fertilizing mechanism, and a film covering mechanism. It can complete the side strip fertilizing depth of 10~15 cm, and the fertilizing amount can be adjusted to 2.7~4.1 kg·hm-2 accurately. It meets the agronomic requirements of deep\|fertilization of chemical fertilizers in ridge\|furrow planting of melon in northwestern China. The ditch bottom was covered with film without damage, and fitted with the ditch bottom and ditch wall, which not only played a role in increasing temperature and maintaining water, but also effectively inhibited weed growth in order to eliminate herbicide application during the whole growth season of melons. The power consumption of the whole machine was less than 40 kW. The equipment was verified by field performance tests. When the work area was flat and the machine traveled at a constant speed of about 0.5 m·s-1, the degree of mechanical damage to the lighting surface was 41.6 mm·m-2, the thickness of the film edge was 27.3 mm, and the width of the film edge was 44.6 mm. The qualified rate of the thickness of the soil on the edge of the film was 96.1%, the qualified rate of the width of the soil on the edge of the film was 95.6%, the longitudinal elongation of the film was 92.3%, the coefficient of variation of the uniformity of fertilizer discharge was 5.6%, and the depth of the trench was 32.5 cm. The test results showed that the relevant performance indicators reached national standards and agronomic requirements, and can realize mechanized operation of fertilizing, mulching, and mulching on soil in ridge\|furrow planting of melon. |
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