| Titles |
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English :
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Modification of pesticide sprayer to suit the orchard trees
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Arabic :
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تعديل الة رش المبيدات لتناسب اشجار البساتين
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| Abstract |
This study aims to develop a commonly used sprayer in the Egyptian farms (gun sprayer, Alcon Motori) adapted for orchard fields. The main aspect of the modified sprayer was the ability to move nozzles at vertical reciprocating motion, which improves the deposition of the pesticide on upper and lower leaf surfaces. The modified sprayer included the following parts: nozzle carrier frame, pesticide container, pump, pressure regulator, pressure gauge and hoses. The modified sprayer was evaluated under three different forward speeds “FS” of 2.4, 3.4 and 4.6 km/h, three nozzle reciprocating displacement “NRD” of 250, 400 and 600 mm, and three values of operating pressure “OP” of 1000, 1500, and 2000 kPa on the number of droplets deposition at the upper and lower leaf surface, the droplet's mean diameter, application rate, machine field capacity, and spraying cost. Results revealed that increasing the forward speed caused decreasing the number of droplet; droplet means diameter, application rate, spraying cost and increasing the sprayer field capacity. The droplet density and droplet mean diameter were inversely proportional to the nozzle reciprocating displacement. The operating pressure at 2000 kPa resulted in the highest droplet density and the lowest droplet mean diameter at different forward speeds and nozzles reciprocating displacement.
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| Publication year |
2020
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| Organization Name |
Field and horticultural crops Mechanization
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| serial title |
J. of Soil Sciences and Agricultural Engineering, Mansoura Univ.
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| Author(s) from ARC |
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| Publication Type |
Journal
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