Design and Experimental Study of a Bi-Directional Rotating Stubble-Cutting No-Tillage Planter

Huibin Zhu, Xian Wu, Cheng Qian, Lizhen Bai (), Shiao Ma, Haoran Zhao, Xu Zhang and Hui Li
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Huibin Zhu: Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
Xian Wu: Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
Cheng Qian: Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
Lizhen Bai: Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
Shiao Ma: Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
Haoran Zhao: Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
Xu Zhang: Faculty of Modern Agricultural Engineering, Kunming University of Science and Technology, Kunming 650500, China
Hui Li: Shandong Academy of Agricultural Machinery Science, Ji’nan 250100, China

Agriculture, 2022, vol. 12, issue 10, 1-19

Abstract: In view of the problem of a large amount of stubble and straw in Southwest China, it is difficult to carry out no-tillage sowing operations. Based on the principle of supported cutting, a bi-directional rotating stubble-cutting no-tillage planter was designed. According to the extracted left and right mouth contours of Batocera horsfieldi (Hope), the blade curve of a bi-directional rotating cutterhead was designed. The discrete element models were established regarding ‘bi-directional rotating disc cutter, straw and soil’, ‘fertilizer apparatus and fertilizer’, and ‘opener and soil’ in the Extended-Domain-Eigenfunction Method (EDEM) software. The optimal working parameters were analyzed using a quadratic regression orthogonal rotation test and response surface methodology. Accordingly, the prototype was manufactured and the field performance test was carried out. The best working parameters of the machine were as follows: the forward speed of the machine was 0.9 m·s −1 , the cutter spacing was 60 mm, the forward speed was 150 r·min −1 , and the reverse speed was 313 r·min −1 . The field experiment results showed that the average cutting rate of corn straw was 95.72% using the anti-blocking device when the straw mulching amount was 1.63 kg·m −2 . The average sowing depth was 5.4 cm, the average fertilization depth was 10.1 cm, and the average seed–fertilizer spacing was 4.7 cm. The qualified rates of sowing depth, fertilization depth, and spacing were 88.89%, 100%, and 100%, respectively. The designed bi-directional rotating stubble-cutting no-tillage planter can meet the requirements of no-tillage sowing in Southwest China. This study can provide reference for the design and improvement of no-tillage planters under the conditions of a large amount of stubble and straw.

Keywords: anti-blocking; bionics; stubble cutting; EDEM simulation; no-tillage planter; design optimization (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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