000164073 001__ 164073
000164073 005__ 20251204145008.0
000164073 0247_ $$2doi$$a10.1016/j.cropro.2025.107429
000164073 0248_ $$2sideral$$a146185
000164073 037__ $$aART-2025-146185
000164073 041__ $$aeng
000164073 100__ $$0(orcid)0000-0002-5569-0219$$aVigo-Morancho, Alba$$uUniversidad de Zaragoza
000164073 245__ $$aElectrostatic technology for pesticide application. Prototype characterization and validation in super-intensive olive crops
000164073 260__ $$c2025
000164073 5060_ $$aAccess copy available to the general public$$fUnrestricted
000164073 5203_ $$aElectrostatic technology for agricultural crops has been studied in recent decades to improve pesticide deposition by applying voltage to droplets, which maximizes the amount of product reaching the deepest areas of the canopy through attractive forces. However, few studies perform a comprehensive laboratory characterization of a sprayer followed by field validation in order to explore the possibility of reduced amount of chemicals, specifically for super-intensive olive cultivation.
This study aimed to conduct a laboratory evaluation of an electrostatic sprayer prototype designed for three-dimensional hedge crops and validate its performance through field experiments. Sprayer configurations associated with activated or deactivated electrostatic system (ES vs. NES, respectively) were tested. The characterization included airflow evaluation, product distribution profile, charge-to-mass ratio (CMR) quantification, and deposition trials, varying application parameters such as liquid pressure, airflow setup, and distance under controlled environmental conditions. A differentiation between adaxial and abaxial areas of the artificial target during deposition assays was also carried out. Finally, field trials compared the electrostatic sprayer to conventional application methods, providing practical insights into pesticide reduction efficiency. Laboratory results showed no differences in flow rate (L min−1) between ES and NES configurations at any tested pressure. The total accumulated volume from the vertical distribution profile showed variations associated with airflow configuration and liquid pressure as a function of distance. Deposition results revealed higher coverage and deposition when the electrostatic system was activated, regardless of distance or height, with a 70 % increase in abaxial areas compared to the NES. Field trials in super-intensive olive orchards revealed good performance in terms of coverage and deposition on artificial receptors and leaves after application with the electrostatic equipment, particularly at the highest application dose (163.3 L ha−1) compared to the conventional spraying (466.3 L ha−1), highlighting a 60 % reduction in application volume. Additionally, ground losses were significantly lower with the electrostatic sprayer, as coverage and deposition at the base of the trunk were substantially reduced compared to conventional equipment.
000164073 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000164073 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000164073 700__ $$0(orcid)0000-0002-3630-7931$$aVidegain, María$$uUniversidad de Zaragoza
000164073 700__ $$aArtero, Sergio$$uUniversidad de Zaragoza
000164073 700__ $$0(orcid)0000-0003-0373-8310$$aVidal, Mariano$$uUniversidad de Zaragoza
000164073 700__ $$aPáez-Cano, Francisco César
000164073 700__ $$aSánchez-Hermosilla, Julián
000164073 700__ $$0(orcid)0000-0002-0227-1934$$aGarcía-Ramos, Francisco Javier$$uUniversidad de Zaragoza
000164073 7102_ $$15011$$2500$$aUniversidad de Zaragoza$$bDpto. CC.Agrar.y Medio Natural$$cArea Ingeniería Agroforestal
000164073 7102_ $$15004$$2545$$aUniversidad de Zaragoza$$bDpto. Ingeniería Mecánica$$cÁrea Ingeniería Mecánica
000164073 773__ $$g199 (2025), 107429 [17 pp.]$$pCrop prot.$$tCROP PROTECTION$$x0261-2194
000164073 8564_ $$s16673948$$uhttps://zaguan.unizar.es/record/164073/files/texto_completo.pdf$$yVersión publicada
000164073 8564_ $$s2321501$$uhttps://zaguan.unizar.es/record/164073/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000164073 909CO $$ooai:zaguan.unizar.es:164073$$particulos$$pdriver
000164073 951__ $$a2025-12-04-14:45:29
000164073 980__ $$aARTICLE