Current Knowledge and Future Directions for Improving Subsoiling Quality and Reducing Energy Consumption in Conservation Fields

Shangyi Lou, Jin He, Hongwen Li, Qingjie Wang, Caiyun Lu, Wenzheng Liu, Peng Liu, Zhenguo Zhang and Hui Li
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Shangyi Lou: College of Engineering, China Agricultural University, Beijing 100083, China
Jin He: College of Engineering, China Agricultural University, Beijing 100083, China
Hongwen Li: College of Engineering, China Agricultural University, Beijing 100083, China
Qingjie Wang: College of Engineering, China Agricultural University, Beijing 100083, China
Caiyun Lu: College of Engineering, China Agricultural University, Beijing 100083, China
Wenzheng Liu: College of Enology, Northwest A&F University, Yangling 712100, China
Peng Liu: College of Engineering, China Agricultural University, Beijing 100083, China
Zhenguo Zhang: College of Mechanical and Electrical Engineering, Xinjiang Agricultural University, Xinjiang 830052, China
Hui Li: Shandong Academy of Agricultural Machinery Sciences, Shandong 250100, China

Agriculture, 2021, vol. 11, issue 7, 1-17

Abstract: Subsoiling has been acknowledged worldwide to break compacted hardpan, improve soil permeability and water storage capacity, and promote topsoil deepening and root growth. However, there exist certain factors which limit the wide in-field application of subsoiling machines. Of these factors, the main two are poor subsoiling quality and high energy consumption, especially the undesired tillage depth obtained in the field with cover crops. Based on the analysis of global adoption and benefits of subsoiling technology, and application status of subsoiling machines, this article reviewed the research methods, technical characteristics, and developing trends in five key aspects, including subsoiling shovel design, anti-drag technologies, technologies of tillage depth detection and control, and research on soil mechanical interaction. Combined with the research progress and application requirements of subsoiling machines across the globe, current problems and technical difficulties were analyzed and summarized. Aiming to solve these problems, improve subsoiling quality, and reduce energy consumption, this article proposed future directions for the development of subsoiling machines, including optimizing the soil model in computer simulation, strengthening research on the subsoiling mechanism and comprehensive effect, developing new tillage depth monitoring and control systems, and improving wear-resisting properties of subsoiling shovels.

Keywords: subsoiling machine; subsoiling shovel design; anti-drag; tillage depth detection; tillage depth control; tillage depth stability; soil mechanical interaction (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: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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