Computerized instrumentation system for assessing chargeability and deposition of charged spray droplets in agriculture
- 1Agricultural Engineering College and Research Institute, Tamil Nadu Agricultural University
- 2Agricultural Mechanization Division, ICAR-Central Institute of Agricultural Engineering
Abstract
Electrostatic spraying is an effective way to regulate, transmit, penetrate, and deposit pesticides on both the upper (adaxial) and lower (abaxial) surfaces of plant canopies. The charge-to-mass ratio (CMR) must be accurately measured in order to evaluate the spray-charging system’s performance. In this work, a computerized instrumentation system was created to determine the chargeability of spray droplets. The spray-charging method produced a CMR of 4.5 mC kg⁻¹ at a flow rate of 100 ml min⁻¹ and 1.6 mC kg⁻¹ at 400 ml min⁻¹. In addition, MATLAB-based software was developed to measure several characteristics such as Volume Median Diameter (VMD), Number Median Diameter (NMD), and percent coverage of spray droplets, taking into account the impacts of operational and crop parameters on both charged and uncharged drops. The deposited droplet diameters on the adaxial and abaxial surfaces were 110 microns for charged droplets and 160 microns for uncharged droplets. This technology offers a comprehensive solution for optimizing pesticide application and increasing agricultural yield.
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BibTeX
@article{durairaj2026computerized,
title = {{Computerized instrumentation system for assessing chargeability and deposition of charged spray droplets in agriculture}},
author = {C. Divakar Durairaj and Bikram Jyoti},
journal = {Scientific Reports},
year = {2026},
month = aug,
doi = {10.1038/s41598-025-97393-6},
url = {https://doi.org/10.1038/s41598-025-97393-6},
note = {CC BY},
}
RIS
TY - JOUR
TI - Computerized instrumentation system for assessing chargeability and deposition of charged spray droplets in agriculture
AU - C. Divakar Durairaj
AU - Bikram Jyoti
PY - 2026
DA - 2026/08/01
JO - Scientific Reports
DO - 10.1038/s41598-025-97393-6
UR - https://doi.org/10.1038/s41598-025-97393-6
AB - Electrostatic spraying is an effective way to regulate, transmit, penetrate, and deposit pesticides on both the upper (adaxial) and lower (abaxial) surfaces of plant canopies. The charge-to-mass ratio (CMR) must be accurately measured in order to evaluate the spray-charging system’s performance. In this work, a computerized instrumentation system was created to determine the chargeability of spray droplets. The spray-charging method produced a CMR of 4.5 mC kg⁻¹ at a flow rate of 100 ml min⁻¹ and 1.6 mC kg⁻¹ at 400 ml min⁻¹. In addition, MATLAB-based software was developed to measure several characteristics such as Volume Median Diameter (VMD), Number Median Diameter (NMD), and percent coverage of spray droplets, taking into account the impacts of operational and crop parameters on both charged and uncharged drops. The deposited droplet diameters on the adaxial and abaxial surfaces were 110 microns for charged droplets and 160 microns for uncharged droplets. This technology offers a comprehensive solution for optimizing pesticide application and increasing agricultural yield.
SN - 2045-2322
ER -