Spray penetration into asparagus (Asparagus officinalis L.) canopy using different nozzle inclinations and application rates

Asparagus (Asparagus officinalis L.) is a difficult crop to treat with spraying pesticides because its architecture makes it difficult for droplets to penetrate inside of the canopy, where its pests are located. This study aims to examine the influence of operational parameters, such as nozzle incli...

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Autores principales:	J. Vásquez-Castro, A. Ancco, B. La Torre
Formato:	article
Lenguaje:	EN
Publicado:	Universidad Nacional Agraria La Molina 2020
Materias:	sprayer nozzle pesticide application technology deposition Agriculture (General) S1-972
Acceso en línea:	https://doaj.org/article/9d3e74ee56ad4236a3f9eb016149f184
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spelling	oai:doaj.org-article:9d3e74ee56ad4236a3f9eb016149f1842021-12-04T17:44:55ZSpray penetration into asparagus (Asparagus officinalis L.) canopy using different nozzle inclinations and application rates2616-447710.21704/pja.v4i1.1464https://doaj.org/article/9d3e74ee56ad4236a3f9eb016149f1842020-04-01T00:00:00Zhttps://revistas.lamolina.edu.pe/index.php/jpagronomy/article/view/1464https://doaj.org/toc/2616-4477Asparagus (Asparagus officinalis L.) is a difficult crop to treat with spraying pesticides because its architecture makes it difficult for droplets to penetrate inside of the canopy, where its pests are located. This study aims to examine the influence of operational parameters, such as nozzle inclination and application rates on the inner side of the canopy. We installed nozzles in the spray boom and its droplegs in three different inclinations: 0° with the plant, 30° in the direction of movement of the tractor-sprayer assembly (+30°), and 30° in the opposite direction (−30°). We applied the mixture in application rates of 600, 900, and 1,200 L ha−1. More so, the regulation used by the farmer of 0° and 800 L ha−1 was applied as a control. Copper (Cu) was used as a tracer for the mixture in a dose of 13.5 g ha−1. Also, non-plasticized polyvinyl chloride grooved tubes (PVC) were installed inside the asparagus canopy and polyethylene sheets were placed on the pipes at different heights from the ground. Later, we analyzed the sheets with atomic absorption spectrophotometry. Results showed that the nozzle inclination and sampling height had notable effects on the copper deposit. Conversely, different application rates showed no varied effects significantly. The greatest copper deposition in the asparagus canopy was achieved with a nozzle inclination of +30° with any application rate. Finally, we recommend regulating the sprayers with a nozzle inclination of +30° and an application rate of 600 L ha−1 as the most effective adjustment for the distribution of pesticides and represent the lowest cost of operation since there is no influence of the application rate.J. Vásquez-CastroA. AnccoB. La Torre,Universidad Nacional Agraria La Molinaarticlesprayernozzlepesticideapplication technologydepositionAgriculture (General)S1-972ENPeruvian Journal of Agronomy, Vol 4, Iss 1, Pp 35-39 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	sprayer nozzle pesticide application technology deposition Agriculture (General) S1-972
spellingShingle	sprayer nozzle pesticide application technology deposition Agriculture (General) S1-972 J. Vásquez-Castro A. Ancco B. La Torre, Spray penetration into asparagus (Asparagus officinalis L.) canopy using different nozzle inclinations and application rates
description	Asparagus (Asparagus officinalis L.) is a difficult crop to treat with spraying pesticides because its architecture makes it difficult for droplets to penetrate inside of the canopy, where its pests are located. This study aims to examine the influence of operational parameters, such as nozzle inclination and application rates on the inner side of the canopy. We installed nozzles in the spray boom and its droplegs in three different inclinations: 0° with the plant, 30° in the direction of movement of the tractor-sprayer assembly (+30°), and 30° in the opposite direction (−30°). We applied the mixture in application rates of 600, 900, and 1,200 L ha−1. More so, the regulation used by the farmer of 0° and 800 L ha−1 was applied as a control. Copper (Cu) was used as a tracer for the mixture in a dose of 13.5 g ha−1. Also, non-plasticized polyvinyl chloride grooved tubes (PVC) were installed inside the asparagus canopy and polyethylene sheets were placed on the pipes at different heights from the ground. Later, we analyzed the sheets with atomic absorption spectrophotometry. Results showed that the nozzle inclination and sampling height had notable effects on the copper deposit. Conversely, different application rates showed no varied effects significantly. The greatest copper deposition in the asparagus canopy was achieved with a nozzle inclination of +30° with any application rate. Finally, we recommend regulating the sprayers with a nozzle inclination of +30° and an application rate of 600 L ha−1 as the most effective adjustment for the distribution of pesticides and represent the lowest cost of operation since there is no influence of the application rate.
format	article
author	J. Vásquez-Castro A. Ancco B. La Torre,
author_facet	J. Vásquez-Castro A. Ancco B. La Torre,
author_sort	J. Vásquez-Castro
title	Spray penetration into asparagus (Asparagus officinalis L.) canopy using different nozzle inclinations and application rates
title_short	Spray penetration into asparagus (Asparagus officinalis L.) canopy using different nozzle inclinations and application rates
title_full	Spray penetration into asparagus (Asparagus officinalis L.) canopy using different nozzle inclinations and application rates
title_fullStr	Spray penetration into asparagus (Asparagus officinalis L.) canopy using different nozzle inclinations and application rates
title_full_unstemmed	Spray penetration into asparagus (Asparagus officinalis L.) canopy using different nozzle inclinations and application rates
title_sort	spray penetration into asparagus (asparagus officinalis l.) canopy using different nozzle inclinations and application rates
publisher	Universidad Nacional Agraria La Molina
publishDate	2020
url	https://doaj.org/article/9d3e74ee56ad4236a3f9eb016149f184
work_keys_str_mv	AT jvasquezcastro spraypenetrationintoasparagusasparagusofficinalislcanopyusingdifferentnozzleinclinationsandapplicationrates AT aancco spraypenetrationintoasparagusasparagusofficinalislcanopyusingdifferentnozzleinclinationsandapplicationrates AT blatorre spraypenetrationintoasparagusasparagusofficinalislcanopyusingdifferentnozzleinclinationsandapplicationrates
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Spray penetration into asparagus (Asparagus officinalis L.) canopy using different nozzle inclinations and application rates

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