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	Provedor de dados REA (3) Autor Carvalho,Fernando K. (3) Chechetto,Rodolfo G. (2) Antuniassi,Ulisses R. (1) Cação,José E. da C. R. (1) Gandolfo,Marco A. (1) Gandolfo,Ulisses D. (1) Kruger,Greg R. (1) Moraes,Eder D. de (1) Moreira,Bruno R. de A. (1) Mota,Alisson A. B. (1) Prado,Evandro P. (1) Raetano,Carlos G. (1) Mais... Palavra-chave Application technology (2) Pesticides (2) Atomization (1) Environmental contamination (1) Pesticide application technology (1) Run-off (1) Spray drift (1) Spreading area (1) Surfactant (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Ano 2019 (1) 2016 (1) 2014 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última BLADE ANGLE EFFECT ON DROPLET SIZE SPECTRUM OF ROTARY ATOMIZERS USED IN BRAZIL REA Carvalho,Fernando K.; Antuniassi,Ulisses R.; Chechetto,Rodolfo G.; Mota,Alisson A. B.; Kruger,Greg R.. ABSTRACT The effect of blade angle on droplet size spectrum of five rotary cage atomizers and one rotary disc atomizer used in Brazil was evaluated in a high speed wind tunnel, with an air speed of 180 km h−1. This study included the characterization of the droplet size spectrum, via laser diffraction instrument, generated by three blades angles, of 45, 60 and 75 degrees. The spray solution was composed of Picoxystrobin+ Cyproconazole fungicide (SC), at 20 mL c.p. L−1, and at a flow rate of 6 L min−1. As the angle decreased from 75 to 45 degrees, the rotational speed of the atomizers increased and the volume median diameter (VMD) decreased. However, increasing the rotational speed also increased the percentage of droplets smaller than 100 µm (% < 100... Tipo: Info:eu-repo/semantics/article Palavras-chave: Application technology; Atomization; Spray drift; Pesticides. Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601118 Effect of working pressure at different spray nozzles on drift quantification in wind tunnel REA Gandolfo,Marco A.; Carvalho,Fernando K.; Chechetto,Rodolfo G.; Gandolfo,Ulisses D.; Moraes,Eder D. de. Each year, there is an increase in pesticide consumption and in its importance of use in the large-scale agricultural production, being fundamental the knowledge of application technology to the activity success. The objective of the present study was to evaluate the influence of working pressure on the drift generated by different spray nozzles, assessed in wind tunnel. The treatments were composed of two spray nozzles AXI 110015 and AXI 11002 with pressure levels of 276 and 414 kPa. The spray solution was composed by water and NaCl at 10%. The applications were conducted at wind speed of 2.0 m s-1, being the drift collected at 5.0; 10.0 and 15.0 m away from the spray boom and at heights of 0.2; 0.4; 0.6; 0.8 e 1.0 m from the tunnel floor. To both spray... Tipo: Info:eu-repo/semantics/article Palavras-chave: Application technology; Pesticides; Environmental contamination. Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162014000100008 SPRAY RETENTION ON COFFEE LEAVES ASSOCIATED WITH TYPE AND CONCENTRATION OF ADJUVANTS REA Cação,José E. da C. R.; Moreira,Bruno R. de A.; Raetano,Carlos G.; Carvalho,Fernando K.; Prado,Evandro P.. ABSTRACT Agricultural spray adjuvants (ASA) are widely used in pesticide applications to enhance the performance of pesticides. The aim of this research was to investigate the effects of ASA on static surface tension (SST) and foliar spray retention on coffee leaves. The SST of ASA at different concentrations was determined by the drop weight method. Spray retention on adaxial and abaxial coffee leaf surfaces was performed using a micro-sprayer at solution concentrations of 0, 0.01, 0.1, 0.5, and 1.0% v v−1. The ASA assessed were: polyether-polymethylsiloxane-copolymer (PPC); Nonylphenol ethoxylate; nonyl polyethylene glycol ether; mineral oil; nonylphenoxy polyethoxy ethanol; carboxyl copolymer of styrene and butadiene; primary aliphatic oxyalkylated... Tipo: Info:eu-repo/semantics/article Palavras-chave: Surfactant; Run-off; Spreading area; Pesticide application technology. Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000500623 Registros recuperados: 3 Primeira ... 1 ... Última

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