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Article

Experimental Investigation of Impact Mechanisms of Seeding Quality for Ridge-Clearing No-Till Seeder Under Strip Tillage

1
School of Agricultural Engineering, Jiangsu University, Zhenjiang 212013, China
2
Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Zhenjiang 212013, China
3
Information Technology Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
4
Department of Agricultural and Biological Engineering, The Pennsylvania State University, University Park, PA 16802, USA
5
College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Agronomy 2025, 15(8), 1875; https://doi.org/10.3390/agronomy15081875 (registering DOI)
Submission received: 1 July 2025 / Revised: 30 July 2025 / Accepted: 31 July 2025 / Published: 1 August 2025
(This article belongs to the Collection AI, Sensors and Robotics for Smart Agriculture)

Abstract

Under conservation tillage in the Huang-Huai-Hai wheat–maize rotation area, the ridge-clearing no-till seeder for strip tillage mitigates the adverse impacts of surface residues on seeding quality by clearing stubble specifically within the seed rows, demonstrating significant potential for application and promotion. However, the inadequate understanding of the seeder’s operational performance and governing mechanisms under varying field conditions hinders its high-quality and efficient implementation. To address this issue, this study selected the stubble height, forward speed, and stubble knife rotational speed (PTO speed) as experimental factors. Employing a three-factor quasi-level orthogonal experimental design, coupled with response surface regression analysis, this research systematically elucidated the interaction mechanisms among these factors concerning the seeding depth consistency and seed spacing uniformity of the seeder. An optimized parameter-matching model was subsequently derived through equation system solving. Field trials demonstrated that a lower forward speed improved the seed spacing uniformity and seeding depth consistency, whereas high speeds increased the missing rates and spacing deviations. An appropriate stubble height enhanced the seed spacing accuracy, but an excessive height compromised depth precision. Higher PTO speeds reduced multiple indices but impaired depth accuracy. Response surface analysis based on the regression models demonstrated that the peak value of the seed spacing qualification index occurred within the forward speed range of 8–9 km/h and the stubble height range of 280–330 mm, with the stubble height being the dominant factor. Similarly, the peak value of the seeding depth qualification index occurred within the stubble height range of 300–350 mm and the forward speed range of 7.5–9 km/h, with the forward speed as the primary factor. Validation confirmed that combining stubble heights of 300−330 mm, forward speeds of 8−9 km/h, and PTO speeds of 540 r/min optimized both metrics. This research reveals nonlinear coupling relationships between operational parameters and seeding quality metrics, establishes a stubble–speed dynamic matching model, and provides a theoretical foundation for the intelligent control of seeders in conservation tillage systems.
Keywords: conserving cultivation; strip tillage; no-till seeder; seeding quality; seeding depth stability; seed spacing uniformity; parameter control conserving cultivation; strip tillage; no-till seeder; seeding quality; seeding depth stability; seed spacing uniformity; parameter control

Share and Cite

MDPI and ACS Style

Gao, Y.; Hu, Y.; Yang, S.; Zhao, X.; Lu, S.; Dou, H.; Zhu, Q.; Li, P.; Zhu, Y. Experimental Investigation of Impact Mechanisms of Seeding Quality for Ridge-Clearing No-Till Seeder Under Strip Tillage. Agronomy 2025, 15, 1875. https://doi.org/10.3390/agronomy15081875

AMA Style

Gao Y, Hu Y, Yang S, Zhao X, Lu S, Dou H, Zhu Q, Li P, Zhu Y. Experimental Investigation of Impact Mechanisms of Seeding Quality for Ridge-Clearing No-Till Seeder Under Strip Tillage. Agronomy. 2025; 15(8):1875. https://doi.org/10.3390/agronomy15081875

Chicago/Turabian Style

Gao, Yuanyuan, Yongyue Hu, Shuo Yang, Xueguan Zhao, Shengwei Lu, Hanjie Dou, Qingzhen Zhu, Peiying Li, and Yongyun Zhu. 2025. "Experimental Investigation of Impact Mechanisms of Seeding Quality for Ridge-Clearing No-Till Seeder Under Strip Tillage" Agronomy 15, no. 8: 1875. https://doi.org/10.3390/agronomy15081875

APA Style

Gao, Y., Hu, Y., Yang, S., Zhao, X., Lu, S., Dou, H., Zhu, Q., Li, P., & Zhu, Y. (2025). Experimental Investigation of Impact Mechanisms of Seeding Quality for Ridge-Clearing No-Till Seeder Under Strip Tillage. Agronomy, 15(8), 1875. https://doi.org/10.3390/agronomy15081875

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