Eficiencia de pulverizadores hidroneumáticos de uso fitosanitario en la fruticultura cuyana (Argentina)

Phytosanitary protection of fruit crops is mainly done with axial fan sprayers. Due to lack of up-dated studies, the objective was to assess the performance of the main hydropneumatic spraying units used for phytosanitary treatment of fruit plants in Cuyo (Argentina). Measurements were taken at a st...

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Detalles Bibliográficos
Autores principales: Montoya, Marcos Adrian, Ambrogetti, Alejandro Omar, Del Monte, Raúl Feliciano
Formato: Online
Lenguaje:spa
Publicado: Facultad de Ciencias Agrarias-UNCuyo 2018
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Acceso en línea:https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2967
Descripción
Sumario:Phytosanitary protection of fruit crops is mainly done with axial fan sprayers. Due to lack of up-dated studies, the objective was to assess the performance of the main hydropneumatic spraying units used for phytosanitary treatment of fruit plants in Cuyo (Argentina). Measurements were taken at a standardized rate from the rear PTO (power take off) of the tractor. The air flow generated by the fan was assessed in a wind tunnel and the spatial distribution of air velocity was evaluated with a hot wire anemometer. The determination of vertical spray distribution was done with a lamellate patternator. Power demands were also determined. Air flows ranged between 257.49 m3.min-1 and 485.17 m3 min-1. Spraying units B and C showed asymmetric air distribution. Vertical spray distribution showed symmetry between the left and right sections, except for unit of equipment B in both working modes and E high. Power demand alternated between 11.96 kW and 31.17 kW. The most efficient units were A in its only available working mode D low and high and E low. Hydro pneumatic units have different aerodynamic capacities, both in released air flow and bilateral distribution and they have different power demands.