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Kannan, Balaji
- Effect of Downwash Airflow Distribution of Multi-Rotor Unmanned Aerial Vehicle on Spray Droplet Deposition Characteristics in Rice Crop
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PDF Views:79
Authors
D. Yallappa
1,
R. Kavitha
1,
A. Surendrakumar
1,
B. Suthakar
1,
A. P. Mohan Kumar
1,
M. K. Kalarani
2,
Balaji Kannan
3
Affiliations
1 Department of Farm Machinery and Power Engineering, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
2 Directorate of Crop Management, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
3 Department of Physical Science and Information Technology, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
1 Department of Farm Machinery and Power Engineering, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
2 Directorate of Crop Management, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
3 Department of Physical Science and Information Technology, Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University, Coimbatore 641 003, IN
Source
Current Science, Vol 125, No 2 (2023), Pagination: 172-182Abstract
The UAV downwash airflow pattern generated by rotor propellers is one of the significant factors influencing the characteristics of spray droplet deposition distribution. UAV sprayer and battery operated sprayer were used to study the effect of downwash airflow distribution of UAV on spray droplet deposition characteristics in a paddy field. The UAV sprayer was operated with optimized operational parameters and spray droplet characteristics, viz. spray deposition rate (µl cm–2), spray droplet size (µm), spray deposition density (No’s cm–2) and spray deposition uniformity (%) were analysed using Deposit Scan software. The UAV sprayer showed better results in spray droplet deposition rate, spray coverage per unit area and spray droplet deposition densities than the conventional battery-operated manual sprayer. Additionally, it was found that the UAV sprayer increased the chemical’s penetration into crop leaves, leading to higher chemical deposition on both the upper and lower layers of rice leaves.Keywords
Chemical Spray Deposition, Deposition Uniformity, Downwash Air, Droplet Size, Manual Spray, Water Sensitive Paper.Full Text
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