Design and Fabrication of A Mechanized Agricultural Sprayer for Vegetable Crops
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This study aimed to design, fabricate, and evaluate a mechanized agricultural sprayer for vegetable crop production. A design and development research approach was employed, consisting of four phases: design and planning, material selection, fabrication and assembly, and testing and evaluation. The developed sprayer was constructed using locally available materials and configured with a wheeled frame, tank, pump system, and dual-nozzle spraying mechanism. Field testing was conducted to assess its performance in terms of spray coverage, discharge rate, and operational efficiency. Results showed that the sprayer, with a tank capacity of 20 liters, was capable of covering an average area of 1,350 square meters per full tank, with a range of 1,200 to 1,500 square meters depending on operating conditions. The dual-nozzle system ensured uniform spray distribution, while the push-type design reduced operator fatigue and improved mobility compared to traditional knapsack sprayers. The discharge rate was found to be stable, ensuring consistent liquid flow during operation. Overall, the developed mechanized agricultural sprayer demonstrated efficiency, cost-effectiveness, and practicality for small to medium-scale vegetable farming. The study highlights the potential of mechanized solutions in enhancing agricultural productivity and reducing labor
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