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At present, the straight-grooves type external groove wheel fertilizer apparatus is widely used, which has the problem that the fertilizer flow fluctuates periodically and is not conducive to precision fertilization. Therefore a kind of the spiral groove wheel fertilizer apparatus is proposed in the paper, and the designed fertilizer apparatus is experimented and optimized by using Design-Expert Software 10 and a self-made fertilizer experiment bench. Taking the fertilization amount and the variation coefficient of fertilization amount as the experiment index, the interaction effects of the groove radius, spiral rising angle, groove wheel rotation speed, and fertilizer tongue inclination of the spiral groove wheel type fertilizer wheel on the fertilization performance are analyzed. The quadratic regression models of multiple factors of the fertilization amount and the variation coefficient of fertilization amount are established. Through optimization and experiment validation, the optimal combination of parameters is determined as follows: the groove radius is 13.5\u00a0mm, the spiral rising angle is 62\u00b0, the groove wheel rotation speed is 29.4 r\/min, the fertilizer tongue inclination is 5\u00b0, the fertilization amount is 17.810\u00a0g and the variation coefficient of fertilization amount is 5.60%.<\/jats:p>","DOI":"10.1038\/s41598-024-51236-y","type":"journal-article","created":{"date-parts":[[2024,1,4]],"date-time":"2024-01-04T13:03:15Z","timestamp":1704373395000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Optimal design and experimental research on the spiral groove wheel fertilizer apparatus"],"prefix":"10.1038","volume":"14","author":[{"given":"Fujun","family":"Wen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Honghai","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lai","family":"Zhou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qingchuang","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2024,1,4]]},"reference":[{"key":"51236_CR1","doi-asserted-by":"publisher","first-page":"10","DOI":"10.3969\/j.issn.1002-6819.2015.03.002","volume":"31","author":"C Xiongfei","year":"2015","unstructured":"Xiongfei, C., Xiwen, L. & Zaiman, W. 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