Optimized design and experimental analysis of the vertical mixing plow for enhancing planosol improvement machine
文献类型： 外文期刊
作者： Du, Jiaxing 1 ; Hou, Jiyao 1 ; Dun, Yuanyuan 1 ; Yang, Chuanhua 1 ; Li, Xiaohai 1 ; Zhu, Baoguo 2 ; Cai, Lijun 2 ; Dun, Guoqiang 3 ;
作者机构： 1.Jiamusi Univ, Coll Mech Engn, Jiamusi, Heilongjiang, Peoples R China
2.Heilongjiang Acad Agr Sci, Jiamusi Branch, Jiamusi, Heilongjiang, Peoples R China
3.Harbin Cambridge Univ, Intelligent Agr Machinery Equipment Engn Lab, Harbin, Heilongjiang, Peoples R China
关键词： Subsoil compaction; Low nutrient; Root penetration; Tillage depth; Discrete element simulation; Mixing rate
期刊名称：SCIENTIFIC REPORTS （ 影响因子：3.9； 五年影响因子：4.3 ）
ISSN： 2045-2322
年卷期： 2025 年 15 卷 1 期
页码：
收录情况： SCI
摘要： Improved soil fertility to sustain crop productivity is important to enhance agroecosystem services. To address the low nutrient content, subsoil compaction, and poor root penetration in Planosol, a new machine was designed to improve these conditions. This machine integrates subsoil mixing and fertilizer application. The paper details the machine's structure and working principle, focusing on optimizing the vertical mixing plow. Furthermore, discrete element method simulations were conducted, using tillage depth, forward speed, and plow height as factors, with soil mixing rate and tractive resistance serving as the evaluation indicators. Results showed optimal performance at 553 mm tillage depth, 1 m/s speed, and 227 mm plow height, with tractive resistance of 7460.5 N and a soil mixing rate of 72.1%. Field trials and soil improvement tests based on optimized parameters confirmed the accuracy and reliability of the simulation results. Compared to the Shallow plowing and subsoiling area, the subsoil mixing improvement area showed significant improvement, with a yield increase of 16.4-18.9% over two years.
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