SciELO - Scientific Electronic Library Online

vol.43 issue3Nitrous oxide emissions in agricultural soils: a review author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand




Related links


Pesquisa Agropecuária Tropical

On-line version ISSN 1983-4063


SASAKI, Robson Shigueaki et al. Operational performance of an electrical backpack sprayer. Pesqui. Agropecu. Trop. [online]. 2013, vol.43, n.3, pp.339-342. ISSN 1983-4063.

The knapsack sprayer is a very popular equipment, due to its low acquisition cost and wide applicability. In recent years, electric backpack sprayers, which increase the operator's comfort and improve the spraying operation quality, have come up. This study aimed at evaluating an electric backpack sprayer, by using four flat spraying nozzles (XR 110.02, AXI 110.03, AXI 110.04 and AXI 110.05). The variables studied were: liquid flow and pressure, battery charge duration, axis rotation and pump noise. The electric sprayer provided constant flow and pressure for the XR 110.02, AXI 110.03 and AXI 110.04 nozzles. By using the AXI 110.05 nozzle, a variation was observed for the liquid flow and pressure, mainly at the end of each repetition, since the flow increase also increased the pump power demand. Similarly, the battery charge duration was proportional to the power demand. For the flows studied, the pump noise fitted the regulation standards, for a daily working journey of 8 hours.

Keywords : Hydraulic spraying; flat spraying nozzles; liquid flow and pressure.

        · abstract in Portuguese     · text in Portuguese     · Portuguese ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License