Open Access

ARTICLE

Design and Optimization of Planting Process Parameters for 2ZYX-2 Type Green Onion Ditching and Transplanting Machine

Jiqiang Zhang¹, Ziru Niu^1,2, Tianhua Li^1,2, Yanqiang Wu¹, Rui Xi¹, Yuhua Li¹, Guanghua Li³, Jialin Hou^1,2,*

1 College of Mechanical and Electronic Engineering, Shandong Agricultural University, Tai’an, 271018, China
2 College of Horticultural Science and Engineering, Shandong Agricultural University, Tai’an, 271018, China
3 Qingzhou Hualong Machinery Technology Development Co., Ltd., Qingzhou, 262500, China

* Corresponding Author: Jialin Hou. Email:

Phyton-International Journal of Experimental Botany 2020, 89(1), 147-166. https://doi.org/10.32604/phyton.2020.08479

Received 29 August 2019; Accepted 18 October 2019; Issue published 01 March 2020

Abstract

Considering the current low level of mechanization for domestic green onion planting and the high labor intensity of artificial planting, a 2ZYX-2 green onion ditching and transplanting machine, which can complete ditching, ridging, transplanting, repression, soil covering and other operations, is designed in this study. The Central Composite test design method was carried out with the speed of the transplanting machine, the depth of the opener and the horizontal position of the opener as the experimental factors and with the qualification ratio of perpendicularity, the variation coefficient of the plant spacing and the qualification ratio of the planting depth as the test index. Through the analysis of the model interaction and response surface, the change laws that the influence the machine’s forward speed, the depth of the opener and the horizontal position of the opener were studied. The regression model was optimized by Design-Expert 8.0.6 software, and the accuracy of the predicted results was verified by experiments. The optimal working parameters showed that the forward speed of the machine was 0.06 m/s, the depth of the opener was 102 mm, and the horizontal position of the opener was 29 mm. Under conditions of optimal working parameters, the qualification rate of the verticality was 86.83%, the coefficient of variation for the plant spacing was 2.77, and the pass rate of planting depth was 88.26%. The research related to the thesis can provide a reference for the mechanized planting of green onion, which is of great significance to the cost-effectiveness of the green onion industry.

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