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https://doi.org/10.31727/gzb.45.5.11

Efficiency of the autonomous modular system in the implementation of the spray application process in the vineyard

Peter Berk ; Fakultet poljoprivrede i bioloških znanosti, Hoče, Slovenija
Mario Lešnik ; Fakultet poljoprivrede i bioloških znanosti, Hoče, Slovenija
Andrej Paušič ; Fakultet poljoprivrede i bioloških znanosti, Hoče, Slovenija
Denis Stajnko ; Fakultet poljoprivrede i bioloških znanosti, Hoče, Slovenija
Matej Sečnik ; Fakultet strojarstva, Ljubljana, Slovenija


Puni tekst: engleski pdf 191 Kb

str. 104-112

preuzimanja: 100

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Sažetak

Autonomous modular system mounted on a conventional (CON) sprayer operating on the principle of pulse-width modulation (PWM) control of electromagnetic valves represents state-of-the-art technology for implementation controlled application of spray mixture without changing the operating parameters of the sprayer (e.g. spray pressure, nozzle size). In accordance with the principles of precision viticulture, the pulse width modulation control is the primary technology, which allows the application of the required amount of spray mixture exclusively to the target areas of the vine without changing the droplet size spectrum and allows for even deposit quality and reducing the drift outside the target areas. In the vineyard, we tested an autonomous axial sprayer prototype throughout the entire spraying season in 2021 on which we have installed an autonomous modular system with enabled pulse-width control. We tested two modes of operation of the sprayer prototype, namely autonomous (continuous duty cycle control (DC: 0 to 100%)) and conventional (nozzle fully open at all time), at a steady spray speed of 6 kmh-1. We compared the amount of PPP expressed as a percentage between autonomous and conventional mode of operation of the sprayer through individual nozzles on the sprayer. The maximum saving of the spray mixture of 69.8%, through an individual nozzle was measured at phenological stage of the vine BBCH 55. A comparative analysis between the CON and PWM mode of the spray mixture application showed that we saved 626.24 l per year in the automated mode of operation.

Ključne riječi

algorithm; spray mixture; control; vine

Hrčak ID:

285344

URI

https://hrcak.srce.hr/285344

Datum izdavanja:

14.10.2022.

Podaci na drugim jezicima: hrvatski

Posjeta: 339 *





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