Design and Experimentation of Targeted Deep Fertilization Device for Corn Cultivation

作者：Zhongying Qi, Cunliang Liu, Yao Wang, Zhiwei Zhang, Xiaobo Sun · 发表于：Agriculture · 年份：2024 · DOI：10.3390/agriculture14091645 · 被引用次数：5 · 研究领域：Soil Mechanics and Vehicle Dynamics、Agricultural Engineering and Mechanization、Smart Agriculture and AI

In response to the challenges of low fertilizer utilization rates, excessive application amounts, and difficulties in precise targeted fertilization during the middle tillage and top-dressing period for corn, a targeted deep fertilization device is designed, integrating mechanical structure design and automatic control technology. The device mainly includes a strong discharge fertilization device and a targeted fertilization control system. The fertilization device has been designed, and the main factors affecting the performance of the fertilization wheel have been identified. Based on the structure, a strong discharge fertilization plate mechanism has been added, and a mechanical model for the fertilization wheel during the refilling and discharging processes has been constructed. A targeted fertilization control system for corn has been developed that utilizes a photoelectric sensor to detect the position of the corn plants. A microcontroller combines the plant position information and the device moving speed to adjust the intermittent rotation of the stepper motor in real time, achieving targeted deep fertilization for corn. Coupled simulation analysis was conducted using discrete element software EDEM and dynamic software Adams. Through single-factor and multi-factor experiments, the main factors affecting fertilization performance were analyzed, and the optimal structural parameters for the fertilization wheel were determined. Bench validation tests were conducted, and ...