Design and Experiment of 2BDB-6(110) Soybean Bionic Intelligent Till-sowing Machine

被引：0

作者：

Jia H. ^{[1
,2
]}

Zheng J. ^{[1
,2
]}

Zhao J. ^{[1
,2
]}

Guo M. ^{[1
,2
]}

Zhuang J. ^{[1
,2
]}

Wang Z. ^{[3
]}

机构：

[1] Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun

[2] College of Biological and Agricultural Engineering, Jilin University, Changchun

[3] College of Humanities and Sciences, Northeast Normal University, Changchun

来源：

Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2018年 / 49卷 / 05期

关键词：

Bionic tillage; Pressure monitoring; Soybean till-sowing machine; Variable rate fertilization;

D O I：

10.6041/j.issn.1000-1298.2018.05.011

中图分类号：

学科分类号：

摘要：

Insufficient soil water content and slower accumulated temperature rise of the plow layer during spring time tillage in Northeast China severely restricts soybean root growth and soybean development. Based on these issues, a 2BDB-6(110) soybean bionic intelligent till-sowing machine was designed, which was capable of shallow loosening, soil crushing, seeding, ridging and compaction. This machine could significantly raise the soil temperature and water content of plow layer when sowing and fertilizing. And then the bionics, machinery design, reverse engineering and curve fitting were methodologically combined to design a hare claw toe bionic shallow loosening shovel and a pangolin scale bionic ridging shovel both with the anti-drag function, and microcontroller was used to design pressure intelligent monitoring system. Field comparative tests confirmed that the bionic shallow loosening and ridging tillage preparing devices significantly increased the soil temperatures within a certain range, which outperformed the traditional tillage sowing device in reducing operational drag by 13%~20% and the real-time pressure monitoring device can significantly enhance the stability of compaction intensity and increase the average soil water content (0~100 mm) by 1.36%. Parameter optimization experiment suggested that the optimal parameters of tillage sowing combined operation were as follows: shallow loosening depth of 20 cm, and compaction strength of 48 kPa. By contrast verification test, it was found that compared with traditional seeding machine, the proposed machine could raise the soil temperature by 0.7℃(depth at 10 cm), 1.3℃(depth at 20 cm) and 0.9℃(depth at 30 cm), raise the average soil water content (0~100 mm) by 0.47%, advance soybean emergence time by 0.52 d, and increase soybean yield by 2.05%. It was a powerful guarantee for per-unit-area soybean production in Northeast China. © 2018, Chinese Society of Agricultural Machinery. All right reserved.

引用

页码：93 / 107

页数：14

共 23 条

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