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Design and Construction of an Urban Runoff Research Facility
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Enhancing tunnel sprayer performance through optimization of constructional parameters.

Jagjeet Singh1, Maharani Din2,3, Kamal Nayan Agrawal4

  • 1ICAR-Central Institute of Agricultural Engineering, Nabi Bagh, Bhopal, 462038, Madhya Pradesh, India. jgskgp@gmail.com.

Scientific Reports
|July 8, 2025
PubMed
Summary

This study optimized tunnel sprayer parameters, improving pesticide application efficiency and saving up to 42.36% of applied pesticide. Optimized settings enhance plant protection while minimizing environmental impact.

Keywords:
ANNHybrid tree canopyRSMRecycling rateRecycling systemSpray deposits

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Area of Science:

  • Agricultural Engineering
  • Horticultural Science
  • Environmental Science

Background:

  • Tunnel sprayers utilize recycling systems to reduce pesticide waste.
  • Sprayer performance is significantly affected by constructional parameters like nozzle spacing, angle, tunnel opening, and fin pitch.

Purpose of the Study:

  • To investigate the impact of constructional parameters on tunnel sprayer performance.
  • To optimize sprayer efficiency for improved pesticide application and reduced environmental impact.

Main Methods:

  • Developed four adjustment mechanisms for regulating key sprayer parameters.
  • Tested the modified sprayer on a hybrid tree (artificial and natural leaf).
  • Analyzed spatial spray distribution, spray deposits, and pesticide recycling rates.

Main Results:

  • Achieved non-significant results in spatial spray distribution, indicating potential for uniform canopy coverage.
  • Spray deposits ranged from 1.016 × 10-4 to 2.944 × 10-4 µg/mm2, enhancing plant protection.
  • The optimized sprayer saved up to 42.36% of applied pesticide.

Conclusions:

  • Optimized input parameters (X1: 350 mm, X2: 42.5°, X3: 1100 mm, X4: 41 mm) significantly improve tunnel sprayer efficiency.
  • The optimized sprayer conserves costly input resources, ensuring economical farm operations.
  • Reduced pesticide usage contributes to environmental protection.