Variable rate dosing in precision viticulture: Use of electronic devices to improve application efficiency

Llorens Calveras, Jordi; Gil Moya, Emilio; Llop, Jordi; Escolà i Agustí, Alexandre

doi:https://doi.org/10.1016/j.cropro.2009.12.022

Visualitza/Obre

Postprint (673.1Kb)

Data de publicació

2010-03

Autor/a

Llorens Calveras, Jordi

Gil Moya, Emilio

Llop, Jordi

Escolà i Agustí, Alexandre

Citació recomanada

Llorens Calveras, Jordi; Gil Moya, Emilio; Llop, Jordi; Escolà i Agustí, Alexandre; . (2010) . Variable rate dosing in precision viticulture: Use of electronic devices to improve application efficiency. Crop Protection, 2010, vol. 29, num. 3, p. 239-248. https://doi.org/10.1016/j.cropro.2009.12.022.

Resum

Two different spray application methods were compared in three vine varieties at different crop stages. A conventional spray application with a constant volume rate per unit ground area (1 ha(-1)) was compared with a variable rate application method designed to compensate electronically for measured

variations in canopy dimensions. An air-blast sprayer with individual multi-nozzle spouts was fitted with three Ultrasonic sensors and three electro valves on one side, in order to modify the emitted flow rate of the nozzles according to the variability of canopy dimensions in real time. The Purpose of this prototype was to precisely apply the required amount of spray liquid and avoid over dosing. On average, a 58% saving in application volume was achieved with the variable rate method, obtaining similar or even better leaf deposits.

URI

http://hdl.handle.net/10459.1/66687

DOI

https://doi.org/10.1016/j.cropro.2009.12.022

És part de

Crop Protection, 2010, vol. 29, num. 3, p. 239-248

Col·leccions

Aquest document està subjecte a una llicència Creative Commons.cc-by-nc-nd, (c) Elsevier, 2009