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

作　　者：Honglei Jia Mingzhuo Guo Jiale Zhao Dongyan Huang Jian Zhuang Jiangtao Qi 

机构地区：[1]College of Biological and Agricultural Engineering,Jilin University,Changchun 130022,China [2]Key Laboratory of Bionic Engineering,Ministry of Education,Jilin University,Changchun 130022,China

出　　处：《International Journal of Agricultural and Biological Engineering》2019年第1期42-51,共10页国际农业与生物工程学报（英文）

基　　金：We acknowledge that this work was financially supported by Key Project Supported by the 13th Five-Year Plan for National Science and Technology(2016YFD0700302);National Natural Science Foundation of China(51705194);technology development project of Jilin province(20160309001NY,20190301023NY).

摘　　要：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.

关 键 词：BIONICS tillage shallow-loosening SOYBEAN reshaping ridge soil temperature 

分 类 号：S15[农业科学—土壤学]