A lightweight and efficient rice field fertilizer applicator: structure, control, and test analysis
Chengsai Fan, Shijun Wan, Jianfu Sun, Gaoming Xu, Ruiyin He
TL;DR
This paper presents a lightweight fertilizer applicator for rice fields that improves efficiency and reduces environmental impact.
Contribution
A novel lightweight, low-power centrifugal fertilizer applicator with an adaptive control system for paddy fields is developed and tested.
Findings
The fertilizer applicator achieved an average discharge error of 4.84% and a coefficient of variation of 5.47% across rows.
The control system demonstrated strong adaptability to different fertilizers and maintained stability in dynamic tests.
The device outperforms existing applicators in terms of weight, cost, and power requirements.
Abstract
Side-deep fertilization in paddy fields is key to improving nitrogen use efficiency (NUE) and reducing surface water pollution. However, conventional applicators are overly heavy and incompatible with paddy machinery’s limited horsepower, restricting the technology’s popularization. To solve this, this study had two core goals: develop a lightweight, low-power centrifugal distribution-type side-deep fertilizer applicator matching paddy machinery’s load and horsepower limits; design a dedicated control system to enhance fertilization uniformity and fertilizer adaptability. First, the bulk density-based fertilizer model was improved through theoretical analysis of the external grooved wheel fertilizer discharging device, and its performance was validated in bench experiments. Simultaneously, the centrifugal distribution principle was analyzed, with dispenser rotational speed and discharge…
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Taxonomy
TopicsSoil Mechanics and Vehicle Dynamics · Rice Cultivation and Yield Improvement · Polymer-Based Agricultural Enhancements