Design and test of bionic wide-ridge soybean tilling-sowing machine

Honglei Jia, Mingzhuo Guo, Jiale Zhao, Dongyan Huang, Jian Zhuang, Jiangtao Qi

Abstract


The insufficient accumulated temperature of the plow layer during spring tillage in Northeast China severely restricts soybean root growth and whole-plant development. High regional soil viscosity further complicates tilling-sowing. In order to seek a solution to these problems, field comparative tests were conducted to investigate the effects of shallow-loosening (SL) and reshaping ridge (RR) on soil temperature and soybean root growth. Compared with conventional tillage (CT), SL and RR significantly increased the soil temperatures within 0-25 cm (p < 0.05) and 0-15 cm (p < 0.05), respectively. In particular, higher soil temperature within 15-25 cm was established after SL than after RR (p < 0.05). Additionally, SL promoted substantially more vigorous soybean development (seedling height) than RR (p < 0.05), which in turn led to a significant outperformance over CT (p < 0.05). Further, bionics, reverse engineering, and curve fitting were combined to design a hare claw toe bionic shallow-loosening shovel and a pangolin scale bionic ridging shovel with anti-drag functions. Field verification tests confirmed that these two bionic tillage devices outperformed the conventional tillage device in reducing tractive drag by 13%-19%. Based on the results of these tests, a 2BGD-6(110) bionic wide-ridge soybean tilling-sowing machine was designed, which was capable of shallow-loosening, reshaping ridge and sowing. The new machine significantly reduced the tractive drag, efficiently loosened the soil, increased soil temperature, and accelerated soybean root growth. This study can provide a theoretical and practical reference for soybean production in Northeast China.
Keywords: bionics, tillage, shallow-loosening, soybean, reshaping ridge, soil temperature
DOI: 10.25165/j.ijabe.20191201.4014

Citation: Jia H L, Guo M Z, Zhao J L, Huang D Y, Zhuang J, Qi J T. Design and test of bionic wide-ridge soybean tilling-sowing machine. Int J Agric & Biol Eng, 2019; 12(1): 42–51.

Keywords


bionics, tillage, shallow-loosening, soybean, reshaping ridge, soil temperature

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References


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