Research on Layered Fertilization Method of Fertilizer Applicator and Optimization of Key Parameters
Abstract
1. Introduction
2. Materials and Methods
2.1. Agronomic Analysis
2.1.1. Root Distribution Characteristics and the Influence of Fertilization Position
2.1.2. Stimulatory Effects of Stratified Fertilization on Fruit Tree Root Systems
2.2. Determination of Jujube Root System Distribution
2.2.1. Root System Excavation
2.2.2. Root System Sieving
2.3. Fertilizer Applicator Structural Design
2.3.1. Structure and Working Principle of Layered Fertilizer Applicator
2.3.2. Structural Design of Key Components
2.4. Bench Test
2.4.1. Structural Composition of Fertilizer Delivery Mechanism
2.4.2. Experimental Design and Protocol
2.4.3. Fertilization Performance Evaluation
2.5. Field Trials
2.5.1. Field Trial Conditions
2.5.2. Experimental Protocol
2.5.3. Test Equipment and Evaluation Metrics
Measurement Method for Fertilizer Uniformity Coefficient
Measurement Method for Row-to-Row Consistency Coefficient
3. Results and Discussion
3.1. Distribution Results of Jujube Root System Measurement
3.2. Analysis of Factors Affecting Fertilization Performance
3.3. Field Fertilization Experiment Results
4. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Encoding | Implement Travel Speed (A) km/h | Screw Rotational Speed (B) r/min | Fertilizer Gate Opening (C) cm |
---|---|---|---|
1 | 2 | 10 | 3 |
0 | 2.7 | 25 | 6 |
−1 | 3.4 | 40 | 9 |
Stroke | Measurement Zone Length (m) | Time (s) | Velocity (km/h) |
---|---|---|---|
First stroke | 50 | 56″95 | 3.2 |
Second stroke | 50 | 50″90 | 3.2 |
Test Serial Number | Experimental Factor | Experimental Index | |||
---|---|---|---|---|---|
Screw Rotational Speed A | Implement Travel Speed B | Fertilizer Gate Opening C | Uniformity Coefficient of Variation (%) | Consistency Coefficient of Variation (%) | |
1 | 25 | 2 | 3 | 5.1 | 8.89 |
2 | 25 | 3.4 | 9 | 7.9 | 8.08 |
3 | 40 | 2.7 | 9 | 8.5 | 8.69 |
4 | 25 | 3.4 | 3 | 7 | 9.97 |
5 | 40 | 3.4 | 6 | 7.8 | 8.82 |
6 | 10 | 2 | 6 | 5.1 | 9.97 |
7 | 25 | 2.7 | 6 | 6 | 7.23 |
8 | 40 | 2.7 | 3 | 6.8 | 9.88 |
9 | 10 | 3.4 | 6 | 6.7 | 10 |
10 | 10 | 2.7 | 9 | 7.2 | 10.05 |
11 | 25 | 2.7 | 6 | 6.1 | 6.95 |
12 | 25 | 2.7 | 6 | 5.9 | 7.05 |
13 | 25 | 2 | 9 | 7.5 | 9.98 |
14 | 10 | 2.7 | 3 | 5.3 | 9.56 |
15 | 40 | 2 | 6 | 7.4 | 9.37 |
Serial Number | Uniformity Coefficient of Variation (%) | Consistency Coefficient of Variation (%) |
---|---|---|
1 | 8.90 | 8.31 |
2 | 8.25 | 7.18 |
3 | 7.64 | 8.02 |
4 | 6.86 | 9.77 |
5 | 7.20 | 9.01 |
Mean value | 7.77 | 8.46 |
Predicted value | 6.86 | 8.09 |
Relative error (%) | 0.91 | 0.36 |
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Zhang, Y.; Li, T.; Zhang, D.; Fan, X.; Zhang, H.; Niu, H. Research on Layered Fertilization Method of Fertilizer Applicator and Optimization of Key Parameters. Agriculture 2025, 15, 1876. https://doi.org/10.3390/agriculture15171876
Zhang Y, Li T, Zhang D, Fan X, Zhang H, Niu H. Research on Layered Fertilization Method of Fertilizer Applicator and Optimization of Key Parameters. Agriculture. 2025; 15(17):1876. https://doi.org/10.3390/agriculture15171876
Chicago/Turabian StyleZhang, Yabo, Tongxi Li, Dong Zhang, Xiuwen Fan, Hong Zhang, and Hao Niu. 2025. "Research on Layered Fertilization Method of Fertilizer Applicator and Optimization of Key Parameters" Agriculture 15, no. 17: 1876. https://doi.org/10.3390/agriculture15171876
APA StyleZhang, Y., Li, T., Zhang, D., Fan, X., Zhang, H., & Niu, H. (2025). Research on Layered Fertilization Method of Fertilizer Applicator and Optimization of Key Parameters. Agriculture, 15(17), 1876. https://doi.org/10.3390/agriculture15171876