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| Dario,Gustavo; Precipito,Laís Maria B; Oliveira,João Victor de; Lucilhia,Leonardo Vinicius da S; Oliveira,Rone B de. |
| RESUMO Devido à carência de informações sobre tecnologia de aplicação na horticultura, objetivou-se com essa pesquisa avaliar o efeito de três técnicas de aplicação em diferentes partes do dossel do tomateiro cultivado em ambiente protegido. As técnicas avaliadas foram 1= Lança manual com duas pontas de jato cone vazio, JA-2 (700 kPa), taxa de aplicação de 618 L ha-1; 2= Barra vertical com seis pontas de jato cone vazio, ATR 0.5 (700 kPa), taxa de aplicação de 493 L ha-1; 3= Barra vertical com seis pontas de jato plano simples, AXI 11002 (400 kPa), taxa de aplicação de 1442 L ha-1. Como indicadores de qualidade da aplicação, foram mensurados o depósito relativo (quantitativo) e a cobertura (qualitativa) das folhas do tomateiro nas posições de coleta... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Solanum lycopersicum; Tecnologia de aplicação; Depósito; Cobertura. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000200146 |
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| Precipito,Laís MB; Dario,Gustavo; Oliveira,João V; Oliveira,Rone B. |
| ABSTRACT On tomato, cucumber and bell pepper cultivation, commonly large quantities of plant-protection products are applied, to control pests and diseases, as a way to guarantee better productivity and final product quality. The knowledge of spreading and evaporation time of spray droplets is fundamental to understand the interaction between fungicides and target surface for proper distribution of this fungicide. This study was installed to determine the wetting area and droplet evaporation of sprays containing the fungicide Cabrio Top, with or without adjuvant Nimbus®, deposited on leaves and artificial surfaces (glass slide). A system was used which analyzes images composed of a droplet generator, a stereoscope camera for capturing images and a climatic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vegetables; Application technology; Greenhouse; Image analysis; Spray droplets. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300320 |
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| Graziano,Carlos E. P. L.; Alves,Karina A.; Gandolfo,Marco A.; Dario,Gustavo; Oliveira,Rone B.. |
| ABSTRACT: Spraying of crop protection products can be affected by weather conditions and spray nozzles, altering deposition patterns and coverage of the target surface. The objective of this research was to analyze the quality of sprayings performed in three periods of the day (9:00 am, 2:00 pm, and 6:00 pm), using two different droplet sizes (fine and coarse) in soybeans. Coverage and deposition were evaluated in the upper, middle, and lower portion of soybean canopy. Spraying the products at 2:00 pm increased leaf coverage in the medium portion but also increased losses to the soil. Spray nozzles with fine droplet sizes provided greater coverage and deposition in the medium and upper portion of the crop for the sprayings performed in the morning. If... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coverage; Deposition; Endo-drift; Spraying time; Application technology. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162017000601183 |
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