2006
DOI: 10.1590/s0100-69162006000200024
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Padrões de distribuição volumétrica de pontas de pulverização de jato plano 11002, com e sem indução de ar, sob diferentes espaçamentos e alturas

Abstract: O presente trabalho teve como objetivo avaliar a distribuição volumétrica de pontas de pulverização hidráulica de jato de uso ampliado 11002, com e sem indução de ar, em laboratório, bem como o padrão de deposição da pulverização, por meio da estimativa do coeficiente de variação (C.V.) obtido pela simulação da sobreposição de jatos adjacentes. As pontas foram posicionadas, isoladamente, no centro da mesa de teste, a 30; 40 e 50 cm de altura da mesa e a 300 e 500 kPa de pressão. Foram avaliadas 20 unidades de … Show more

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Cited by 11 publications
(8 citation statements)
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“…The means obtained with the use of the nozzle AI 11002 were higher than those of Control due to the presence of biotypes resistant to glyphosate in the treatment with solutions, as biotypes were not controlled, they developed and elevated the means of the green and dry biomass (Table 4). According to Bauer et al (2006), the nozzle type used affects the deposition of the drops on the plants. This fact is dependent on a good coverage uniformity and drop size provided by the spray nozzles.…”
Section: Resultsmentioning
confidence: 99%
“…The means obtained with the use of the nozzle AI 11002 were higher than those of Control due to the presence of biotypes resistant to glyphosate in the treatment with solutions, as biotypes were not controlled, they developed and elevated the means of the green and dry biomass (Table 4). According to Bauer et al (2006), the nozzle type used affects the deposition of the drops on the plants. This fact is dependent on a good coverage uniformity and drop size provided by the spray nozzles.…”
Section: Resultsmentioning
confidence: 99%
“…This offers the possibility of increasing the operational performance, both through the increase of speed and through the reduction of stops to refuel the sprayer, and to obtain operational and application efficiency (coverage and deposition at the target) (Table 4). In cases where it is not possible to increase the speed and you wish to reduce the application volume, you can use nozzles with smaller flow rates or increase the spacing between the nozzles; therefore, the increase in the operational performance will be conditioned to the reduction of stops for refuel of the sprayer (Bauer et al, 2006;Ferreira et al, 2011;Volpe et al, 2012).…”
Section: Resultsmentioning
confidence: 99%
“…Na prática, as pontas de indução de ar acabam sendo muito menos utilizadas do que as pontas convencionais de jato plano, jato plano duplo e jato cônico, apesar de este tipo de ponta sofrer uma menor interferência climática, sem alteração significativa na taxa de aplicação e com formação de gotas de diâmetros maiores (BAUER et al, 2006). Pontas de jato plano duplo com indução de ar, além de reduzirem a deriva, promovem maior penetração da pulverização nas culturas, quando comparada ao jato plano padrão.…”
Section: Aspectos Sobre Pontas De Pulverização E Tamanho De Gotasunclassified