Influence of the forward direction surface slope on the sowing depth operation performance of the mechanical profiling maize seeder

IF 6.1 1区农林科学 Q1 SOIL SCIENCE

Soil & Tillage Research Pub Date : 2025-04-21 DOI:10.1016/j.still.2025.106600

Fei Chen , Li Yang , Tao Cui , Dongxing Zhang , Xiantao He , Kailiang Zhang , Zhimin Li

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引用次数: 0

Abstract

The change in the forward direction surface slope (FDSS) has a significant influence on the sowing depth operating performance (SDOP) of the mechanical profiling maize seeder sowing depth adjustment device (SDAD).This study analyses and identifies the main factors affecting the SDOP of the SDAD. RecurDyn simulation of FDSS and spring initial increment (SII) on SDAD downforce show that, taking the non-tilting state (NTS) as a benchmark, the increase in downforce does not exceed 7.29 % in the range from −25° to 0°. Within the range of 0° to 25°, the downforce decreases by 26.42 %. The Multi-body Dynamics and Discrete Element Method (MBD-DEM) coupled simulations of the impact of FDSS on SDOP show that as the absolute value of the FDSS increases, relative to the NTS,the average of sowing depth (ASD) changes by −10.34–6.33 %, the qualification rate of sowing depth (QRSD) changes by −41.21–6.78 %,the coefficient of variation of sowing depth (CVSD) changes by −2.23–2.99 %. Under different FDSS, as the SII increases and the operation speed (OS) decreases, the ASD increases from 38.52 mm to 54.91 mm, the QRSD increases from 10.56 % to 99.27 %, and the CVSD decreases from 17.32 % to 2.87 %. The field experiment results showed that the error between the simulation and field experiment results for the SDOP was less than 7 %. A mathematical model of the FDSS, SII and OS is established, make the SDOP under the FDSS converges to that of the NTS.

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正向坡面坡度对机械剖面玉米播种机播深操作性能的影响

正向地表坡度（FDSS）的变化对机械剖面玉米播种机播深调节装置（SDAD）的播深操作性能（SDOP）有显著影响。本研究分析并确定了影响SDOP的主要因素。FDSS和弹簧初始增量（SII）对SDAD下压力的RecurDyn仿真表明，以非倾斜状态（NTS）为基准，在- 25°~ 0°范围内，下压力的增加不超过7.29 %。在0°~ 25°范围内，下压力减小26.42% %。多体动力学和离散元法（MBD-DEM）耦合模拟结果表明，随着FDSS绝对值的增大，播种深度均值（ASD）变化幅度为−10.34 ~ 6.33 %，播种深度合格率（QRSD）变化幅度为−41.21 ~ 6.78 %，播种深度变异系数（CVSD）变化幅度为−2.23 ~ 2.99 %。在不同FDSS下，随着SII的增大和操作速度（OS）的降低，ASD从38.52 mm增加到54.91 mm， QRSD从10.56 %增加到99.27 %，CVSD从17.32 %降低到2.87 %。现场试验结果表明，SDOP模拟结果与现场试验结果误差小于7 %。建立了FDSS、SII和OS的数学模型，使FDSS下的SDOP收敛于NTS下的SDOP。

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来源期刊

Soil & Tillage Research 农林科学-土壤科学

CiteScore

13.00

自引率

6.20%

发文量

266

审稿时长

5 months

期刊介绍： Soil & Tillage Research examines the physical, chemical and biological changes in the soil caused by tillage and field traffic. Manuscripts will be considered on aspects of soil science, physics, technology, mechanization and applied engineering for a sustainable balance among productivity, environmental quality and profitability. The following are examples of suitable topics within the scope of the journal of Soil and Tillage Research: The agricultural and biosystems engineering associated with tillage (including no-tillage, reduced-tillage and direct drilling), irrigation and drainage, crops and crop rotations, fertilization, rehabilitation of mine spoils and processes used to modify soils. Soil change effects on establishment and yield of crops, growth of plants and roots, structure and erosion of soil, cycling of carbon and nutrients, greenhouse gas emissions, leaching, runoff and other processes that affect environmental quality. Characterization or modeling of tillage and field traffic responses, soil, climate, or topographic effects, soil deformation processes, tillage tools, traction devices, energy requirements, economics, surface and subsurface water quality effects, tillage effects on weed, pest and disease control, and their interactions.