Effects of operational variables on agrochemical spray application quality and drift
Pesticide spraying is the most widespread form of pest control. Spraying is a complex process, from the agronomic and environmental point of view. A field trial was carried out, to evaluate the effect of three agrochemical application techniques. In all of them, an air-induced flat fan was used, wi...
| Main Authors: | , , , , , |
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| Format: | Online |
| Language: | spa |
| Published: |
Facultad de Ciencias Agropecuarias
2019
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| Subjects: | |
| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/19093 |
| _version_ | 1811172554589601792 |
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| author | Merani, Victor Hugo Mur, Matilde Ramirez, Federico Ponce, Mariano Julio Guilino, Facundo Palancar, Telmo Cecilio |
| author_facet | Merani, Victor Hugo Mur, Matilde Ramirez, Federico Ponce, Mariano Julio Guilino, Facundo Palancar, Telmo Cecilio |
| author_sort | Merani, Victor Hugo |
| collection | Portal de Revistas |
| description | Pesticide spraying is the most widespread form of pest control. Spraying is a complex process, from the agronomic and environmental point of view. A field trial was carried out, to evaluate the effect of three agrochemical application techniques. In all of them, an air-induced flat fan was used, with different application rates, sprayer speeds and noozle spacing. Three techniques were defined: T1 (57 l ha-1, 18 km h-1 and 0,35 m), T2 (28,7 l ha-1, 18 km h-1 and 0,70 m) and T3 (57 l ha-1, 9 km h-1 and 0,70 m. To assess the techniques, water-sensitive cards were placed on the ground in vertical columns, to measure the quality of application, sedimenting spray drift and cumulative airborne spray drift. The three techniques were similar in application quality but T1 reached a greater coverage. Regarding the airborne drift factor, T2 presented significant differences with respect to the other two techniques, which leads to the conclusion that higher speeds, larger noozle space and lower application rates increase airborne drift. There were no differences in sedimenting drift. Operational variables affect environmental risks regardless of the drop size produced.
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| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-19093 |
| institution | Universidad Nacional de Cordoba |
| language | spa |
| publishDate | 2019 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-190932020-03-30T18:05:51Z Effects of operational variables on agrochemical spray application quality and drift Efecto de variables operativas sobre la calidad de aplicación y la deriva en la pulverización de agroquímicos Merani, Victor Hugo Mur, Matilde Ramirez, Federico Ponce, Mariano Julio Guilino, Facundo Palancar, Telmo Cecilio flat fan application rate airborne drift low volume abanico plano tasa de aplicación exoderiva bajo volumen Pesticide spraying is the most widespread form of pest control. Spraying is a complex process, from the agronomic and environmental point of view. A field trial was carried out, to evaluate the effect of three agrochemical application techniques. In all of them, an air-induced flat fan was used, with different application rates, sprayer speeds and noozle spacing. Three techniques were defined: T1 (57 l ha-1, 18 km h-1 and 0,35 m), T2 (28,7 l ha-1, 18 km h-1 and 0,70 m) and T3 (57 l ha-1, 9 km h-1 and 0,70 m. To assess the techniques, water-sensitive cards were placed on the ground in vertical columns, to measure the quality of application, sedimenting spray drift and cumulative airborne spray drift. The three techniques were similar in application quality but T1 reached a greater coverage. Regarding the airborne drift factor, T2 presented significant differences with respect to the other two techniques, which leads to the conclusion that higher speeds, larger noozle space and lower application rates increase airborne drift. There were no differences in sedimenting drift. Operational variables affect environmental risks regardless of the drop size produced. La pulverización con plaguicidas es la forma más difundida de control de plagas pero su uso es complejo, desde el punto de vista agronómico. Se realizó un ensayo a campo con el objeto de evaluar la incidencia de tres técnicas de aplicación de agroquímicos; en todas ellas se utilizó una pastilla abanico plano aire inducido, empleando distintas tasas de aplicación, velocidades de avance y distanciamientos entre pastillas quedando definidas tres técnicas: T1 (57 l ha-1, 18 km h-1 y 0,35 m), T2 (28,7 l ha-1, 18 km h-1 y 0,70 m) y T3 (57 l ha-1, 9 km h-1 y 0,70 m). Para evaluar las técnicas se colocaron tarjetas hidrosensibles sobre el suelo y en columnas verticales, determinando la calidad de aplicación, la deriva de sedimentación y la exoderiva acumulada. Las tres técnicas fueron similares en calidad de aplicación alcanzando T1 una mayor cobertura. Para el factor exoderiva, T2 alcanzó diferencias significativas con respecto a las otras dos técnicas, por lo que altas velocidades de avance y distanciamientos entre picos y bajas tasas de aplicación aumentan la exoderiva. No hubo diferencias en deriva de sedimentación. Las variables operativas inciden sobre los riesgos ambientales independientemente del tamaño de gota producido. Facultad de Ciencias Agropecuarias 2019-12-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html https://revistas.unc.edu.ar/index.php/agris/article/view/19093 10.31047/1668.298x.v36.n2.19093 AgriScientia; Vol. 36 No. 2 (2019); 45-55 AgriScientia; Vol. 36 Núm. 2 (2019); 45-55 1668-298X 10.31047/1668.298x.v36.n2 spa https://revistas.unc.edu.ar/index.php/agris/article/view/19093/28865 https://revistas.unc.edu.ar/index.php/agris/article/view/19093/29278 |
| spellingShingle | flat fan application rate airborne drift low volume abanico plano tasa de aplicación exoderiva bajo volumen Merani, Victor Hugo Mur, Matilde Ramirez, Federico Ponce, Mariano Julio Guilino, Facundo Palancar, Telmo Cecilio Effects of operational variables on agrochemical spray application quality and drift |
| title | Effects of operational variables on agrochemical spray application quality and drift |
| title_alt | Efecto de variables operativas sobre la calidad de aplicación y la deriva en la pulverización de agroquímicos |
| title_full | Effects of operational variables on agrochemical spray application quality and drift |
| title_fullStr | Effects of operational variables on agrochemical spray application quality and drift |
| title_full_unstemmed | Effects of operational variables on agrochemical spray application quality and drift |
| title_short | Effects of operational variables on agrochemical spray application quality and drift |
| title_sort | effects of operational variables on agrochemical spray application quality and drift |
| topic | flat fan application rate airborne drift low volume abanico plano tasa de aplicación exoderiva bajo volumen |
| topic_facet | flat fan application rate airborne drift low volume abanico plano tasa de aplicación exoderiva bajo volumen |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/19093 |
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