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Jordi Llop
Polytechnic University of Catalonia
27Publications
9H-index
364Citations
Publications 27
Newest
#1Ramón Salcedo (UPC: Polytechnic University of Catalonia)H-Index: 2
#2Jordi Llop (UPC: Polytechnic University of Catalonia)H-Index: 9
Last.E. Gil (UPC: Polytechnic University of Catalonia)H-Index: 15
view all 7 authors...
Abstract Spray application technologies for specialty crops have developed considerably in recent years with regard to improved control, reduced cost, and ability to avoid environmental contamination. For example, new developments in electrostatic sprayers have been progressively introduced as an alternative for vineyard spray applications. This study investigated the efficiency of this emerging technology in a Spanish trellis vineyard. First, a complete characterization of an electrostatic spra...
Source
#1Javier Clavero-Campos (UPC: Polytechnic University of Catalonia)H-Index: 3
#2Jordi Llop (UPC: Polytechnic University of Catalonia)H-Index: 9
Last.E. Gil (UPC: Polytechnic University of Catalonia)H-Index: 15
view all 7 authors...
Site-specific management of crops represents an important improvement in terms of efficiency and efficacy of the different labours, and its implementation has experienced a large development in the last decades, especially for field crops. The particular case of the spray application process for what are called “specialty crops” (vineyard, orchard fruits, citrus, olive trees, etc.) represents one of the most controversial and influential actions directly related with economical, technical, and e...
2 CitationsSource
#1Ramón Salcedo (UPC: Polytechnic University of Catalonia)H-Index: 2
#2Pau Pons (UPC: Polytechnic University of Catalonia)H-Index: 1
Last.E. Gil (UPC: Polytechnic University of Catalonia)H-Index: 15
view all 8 authors...
Abstract Air assisted sprayers are currently used for the applications of plant protection products in fruit trees and vineyards. However, the use of these equipment carries a high environmental risk, mainly owing to the generation of airborne spray drift in the lower boundary layer above crop canopy. Hence, many tests are currently focused on investigating several factors that affect the efficiency of the spray process, in which air assistance and air behaviour are two of the most difficult par...
1 CitationsSource
#1Javier Clavero-Campos (UPC: Polytechnic University of Catalonia)H-Index: 3
#2Montserrat Gallart (UPC: Polytechnic University of Catalonia)H-Index: 9
Last.E. Gil (UPC: Polytechnic University of Catalonia)H-Index: 15
view all 4 authors...
Source
#1E. Gil (UPC: Polytechnic University of Catalonia)H-Index: 15
#2Javier Clavero-Campos (UPC: Polytechnic University of Catalonia)H-Index: 3
Last.Montserrat Gallart (UPC: Polytechnic University of Catalonia)H-Index: 9
view all 8 authors...
Abstract DOSAVINA is a new tool (website and app for smartphones) developed for calculating the optimal volume rates and pesticide doses to apply during spray application processes in vineyards. DOSAVINA also calculates and recommends the optimal working parameters for working pressure, forward speed, and number and types of nozzles. DOSAVINA was developed by the Unit of Agricultural Machinery at the Universitat Politecnica de Catalunya, and is available for iOS and Android devices. It is also a...
1 CitationsSource
#1Jorge Badules (University of Zaragoza)H-Index: 1
#2Mariano Vidal (University of Zaragoza)H-Index: 4
Last.F. Javier García-Ramos (University of Zaragoza)H-Index: 3
view all 7 authors...
Abstract A computational fluid dynamics (CFD) model for simulating the air flow produced by an air-assisted sprayer can be developed according to any one of several sets of criteria and for various specific applications. Thus far, most CFD models have focused on the characterization of the air flow generated by the sprayer. However, such models may not be the best when assessing the effectiveness of air-assisted sprayers adapted to crop geometry, such as those used in vineyards. In this study, t...
3 CitationsSource
#1E. GilH-Index: 15
#2Jordi LlopH-Index: 9
view all 4 authors...
espanolDurante los tratamientos fitosanitarios, una fraccion de producto no alcanza la vegetacion objetivo y es empujada del area tratada por la accion del viento. Esto puede suponer un riesgo medioambiental y para la salud humana. En la formacion de la deriva influyen diferentes factores: condiciones meteorologicas (temperatura, viento, humedad relativa), fisiologia vegetal, estructura de plantacion, parametros asociados a la maquinaria (tipo de pulverizador, boquillas, velocidad de avance…). A...
#1Jordi LlopH-Index: 9
#2E. GilH-Index: 15
Last.Montserrat GallartH-Index: 9
view all 5 authors...
Canopy characterization is essential for pesticide dosage adjustment according to vegetation volume and density. It is especially important for fresh exportable vegetables like greenhouse tomatoes. These plants are thin and tall and are planted in pairs, which makes their characterization with electronic methods difficult. Therefore, the accuracy of the terrestrial 2D LiDAR sensor is evaluated for determining canopy parameters related to volume and density and established useful correlations bet...
8 CitationsSource
#1Jordi Llop (UPC: Polytechnic University of Catalonia)H-Index: 9
#2E. Gil (UPC: Polytechnic University of Catalonia)H-Index: 15
Last.Mireia Ercilla (UPC: Polytechnic University of Catalonia)H-Index: 1
view all 5 authors...
Hand-held-trolley sprayers have recently been promoted to improve spray application techniques in greenhouses in south-eastern Spain. However, certain aspects remain to be improved. A modified hand-held-trolley sprayer was evaluated under two different canopy conditions (high and low canopy density) and with several sprayer settings (nozzle type, air assistance and spray volume). In this study, the deposition, coverage and uniformity of distribution of the spray on the canopy have been assessed....
9 CitationsSource
#1Jordi Llop (UPC: Polytechnic University of Catalonia)H-Index: 9
#2E. Gil (UPC: Polytechnic University of Catalonia)H-Index: 15
Last.Paolo BalsariH-Index: 14
view all 5 authors...
Abstract Protected horticulture production represents one of the most important agricultural businesses in Southern Europe. However, many problems related to the lack of mechanisation, intensive use of pesticides, and, in some cases, undesirable residues on food, have not been solved yet. In this context, application technology is a key factor for the improvement of the efficacy and efficiency of plant protection products. Spray guns and knapsack sprayers are the most common technologies that ha...
11 CitationsSource
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