Results 21 to 30 of about 1,311 (245)

Performance of a Prototype Boom Sprayer for Bed-Grown Carrots Based on Canopy Deposition Optimization, Ground Losses and Spray Drift Potential Mitigation in Semi-Field Conditions

Applied Sciences, 2022
The H2020-project OPTIMA concept of smart sprayer relies on several functionalities, including variable nozzle spacing for bed-grown carrots, based on an air-assisted boom sprayer.
Aude Lamare, Ingrid Zwertvaegher, David Nuyttens, Paolo Balsari, Paolo Marucco, Marco Grella, Amedeo Caffini, Nikos Mylonas, Spyros Fountas, Jean-Paul Douzals   +9 more
doaj   +1 more source

Vibration Analysis of Pulse-Width-Modulated Nozzles in Vineyard Blast Sprayers

Horticulturae, 2023
Spraying systems to protect crops against pests are still necessary to maintain food production at the rates demanded by the current population. However, today, it is crucial to use precision agriculture to reduce the negative effects of pesticides and ...
Coral Ortiz, Antonio Torregrosa, Verónica Saiz-Rubio, Francisco Rovira-Más   +3 more
doaj   +1 more source

Comparison of the pesticide coverage achieved in a trellised vineyard by a prototype tunnel sprayer, a hydraulic sprayer, an air-assisted sprayer and a pneumatic sprayer

Spanish Journal of Agricultural Research, 2005
Spraying is the main method used to apply pesticides to trellised vines in Castilla-La Mancha, Spain. If the efficiency of spray applications is to be improved, the amount of pesticide employed is to be reduced, and the performance of existing and new spray technology enhanced, the leaf coverage achieved must be known and a system developed that can ...
Porras Soriano, A., Porras-Soriano, M.L., Porras Piedra, A., Soriano Martín, M.L.   +3 more
openaire   +4 more sources

Optimization of Diversion Device and Experiment on Air-assisted Sprayers in Orchards

Journal of Physics: Conference Series, 2023
Abstract In order to improve the velocity distribution of the airflow field generated by the air-assisted sprayer in the orchard, a flow field distribution model of the sprayer air delivery system based on CFD simulation is designed. The airflow field distribution of the air-assisted operation is obtained through FLUENT simulation.
Shaohuan Fan, Gaili Gao, Hui Shen
openaire   +1 more source

KINEMATIC STUDY OF THE AIR FLOW PRODUCED BY SOME SPRAYERS USED IN “TENDONE” VINEYARDS

Journal of Agricultural Engineering, 2008
A computerized measuring system to analyse the vector field of the air velocities in a volume surrounding the fan of air assisted sprayers usually used in tendone vineyards was designed and built.
Simone Pascuzzi, Anna Guarella
doaj   +1 more source

CFD Based Analysis of the Effect of Wind in Orchard Spraying

Chemical Engineering Transactions, 2015
The high velocity air jet generated from air assisted orchard sprayers offsets the effect of wind on the spray flow pattern in front of the tree and within the vicinity of the tree height.
A. Duga, K. Ruysen, D. Dekeyser, D. Nuyttens, D. Baylemans, B. Nicolai, P. Verboven   +6 more
doaj   +1 more source

A NOVEL, AIR-ASSISTED TUNNEL SPRAYER FOR VINEYARDS: OPTIMIZATION OF OPERATIONAL PARAMETERS AND FIRST ASSESSMENT IN THE FIELD

Journal of Agricultural Engineering, 2009
Tunnel (recycling) sprayers have long been recognised as an important tool to reduce drift losses. Depending on the crop and the growth stage, tunnel sprayers may recycle up to 60% of the spray volume, thus enabling the farmers to control pests even at ...
Gianfranco Pergher, Raffaella Petris
doaj   +1 more source

Study of the Distribution Characteristics of the Airflow Field in Tree Canopies Based on the CFD Model

Agronomy, 2022
Air-assisted sprayers are the mainstream orchard plant protection machinery in China. During the usage of sprayers, the pesticide droplets carried by strong air jets from sprayers enter into the target canopy. Therefore, the distribution of airflow field
Tao Xu, Hao Zhou, Xiaolan Lv, Xiaohui Lei, Shutian Tao   +4 more
doaj   +1 more source

An innovative pneumatic electrostatic sprayer useful for tendone vineyards

Journal of Agricultural Engineering, 2015
The aim of this note is to analyse the features of the ESS 150 RB14 electrostatic sprayer, an innovative model compared to the standard air-assisted sprayers traditionally used by Apulian growers (Southern Italy) in tendone vineyards.
Simone Pascuzzi, Emanuele Cerruto
doaj   +1 more source

Uso de mesa vertical como parâmetro para regulagens de turboatomizadores The use of a vertical patternator as parameter for adjustments of air assited sprayer

Engenharia Agrícola, 2011
O consumo excessivo de agrotóxicos na agricultura brasileira é preocupante, e um dos fatores que contribuem para este excesso é o uso incorreto dos equipamentos de aplicação, causando grandes problemas de contaminação ambiental.
Renildo L. Mion, Weberte A. Sombra, José M. de L. Duarte, Elivânia M. S. Nascimento, Carlos A. Viliotti, Fidel C. B. Lucas, Clesson A. Monte   +6 more
doaj   +1 more source