Spectrum of droplets produced by use of adjuvants

Adjuvants are products added to spray solution in order to attend the pesticides application. However, their effects in the technical parameters of the spray are not yet fully understood. The objective was to evaluate the effects of addition of five adjuvants (A, B, C, D and E) and five dilutions (D...

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Autores principales: Sasaki,Robson S, Teixeira,Mauri M, Alvarenga,Cleyton B, Santiago,Humberto, Maciel,Christiam F. S
Lenguaje:English
Publicado: Universidad de Tarapacá. Facultad de Ciencias Agronómicas 2013
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292013000100004
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spelling oai:scielo:S0718-342920130001000042014-01-20Spectrum of droplets produced by use of adjuvantsSasaki,Robson STeixeira,Mauri MAlvarenga,Cleyton BSantiago,HumbertoMaciel,Christiam F. S pesticides application technology droplets diameter surfactants Adjuvants are products added to spray solution in order to attend the pesticides application. However, their effects in the technical parameters of the spray are not yet fully understood. The objective was to evaluate the effects of addition of five adjuvants (A, B, C, D and E) and five dilutions (D1 = 30; D2 = 40; D3 = 50; D4 = 60 e D5 = 70 mL per 100 liters of water), and a control (distilled water) in the technical parameters of the spraying (Dv0.1; Dv0.5; Dv0.9 and Span index). The analysis of the droplet spectrum was performed using the droplet particle size analyzer (Spraytec, Malvern Instruments Co.), focal lens of 750 mm. The spraying was performed by a CO2 pressurized sprayer with a spray nozzle XR 11002VK. The sprayings were performed at pressure of 300 kPa. It was observed that there is not a linear relation between dilution and product, regarding the technical parameters of the spraying. As for the parameter Dv0.5 the highest value observed was for the product C on the dose D5 with 232.4 μm, while the control had an average of 148.99 um. In assessing the SPAN index of the different products and dosages tested, they did not improve significantly compared to the control.info:eu-repo/semantics/openAccessUniversidad de Tarapacá. Facultad de Ciencias AgronómicasIdesia (Arica) v.31 n.1 20132013-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292013000100004en10.4067/S0718-34292013000100004
institution Scielo Chile
collection Scielo Chile
language English
topic pesticides application technology
droplets diameter
surfactants
spellingShingle pesticides application technology
droplets diameter
surfactants
Sasaki,Robson S
Teixeira,Mauri M
Alvarenga,Cleyton B
Santiago,Humberto
Maciel,Christiam F. S
Spectrum of droplets produced by use of adjuvants
description Adjuvants are products added to spray solution in order to attend the pesticides application. However, their effects in the technical parameters of the spray are not yet fully understood. The objective was to evaluate the effects of addition of five adjuvants (A, B, C, D and E) and five dilutions (D1 = 30; D2 = 40; D3 = 50; D4 = 60 e D5 = 70 mL per 100 liters of water), and a control (distilled water) in the technical parameters of the spraying (Dv0.1; Dv0.5; Dv0.9 and Span index). The analysis of the droplet spectrum was performed using the droplet particle size analyzer (Spraytec, Malvern Instruments Co.), focal lens of 750 mm. The spraying was performed by a CO2 pressurized sprayer with a spray nozzle XR 11002VK. The sprayings were performed at pressure of 300 kPa. It was observed that there is not a linear relation between dilution and product, regarding the technical parameters of the spraying. As for the parameter Dv0.5 the highest value observed was for the product C on the dose D5 with 232.4 μm, while the control had an average of 148.99 um. In assessing the SPAN index of the different products and dosages tested, they did not improve significantly compared to the control.
author Sasaki,Robson S
Teixeira,Mauri M
Alvarenga,Cleyton B
Santiago,Humberto
Maciel,Christiam F. S
author_facet Sasaki,Robson S
Teixeira,Mauri M
Alvarenga,Cleyton B
Santiago,Humberto
Maciel,Christiam F. S
author_sort Sasaki,Robson S
title Spectrum of droplets produced by use of adjuvants
title_short Spectrum of droplets produced by use of adjuvants
title_full Spectrum of droplets produced by use of adjuvants
title_fullStr Spectrum of droplets produced by use of adjuvants
title_full_unstemmed Spectrum of droplets produced by use of adjuvants
title_sort spectrum of droplets produced by use of adjuvants
publisher Universidad de Tarapacá. Facultad de Ciencias Agronómicas
publishDate 2013
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-34292013000100004
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