Data/hora: 09/06/2024 16:38:24

Provedor de dados: | 63
País: | Brazil
Título: | Air-assisted boom sprayer and spray deposition on bean plants
Autores: | Bauer,Fernando Cesar; Raetano,Carlos Gilberto.
Data: | 2003-01-01
Ano: | 2003
Palavras-chave: | Phaseolus vulgaris; Application technique; Tracer; Boom sprayer.
Resumo: | The development of safe pesticide application techniques with low volume rates, frequency and spray drift, along with the need to obtain better control level of crop pest control levels, justify the air-assistance in boom sprayers. The aim of this research was to evaluate the spray deposition on bean plants with different nozzles and volume rates by air-assisted and non-assisted sprayers. A completely randomized experiment was carried out using copper oxide as a tracer (50% metalic copper) for deposit evaluation. The artificial targets were fixed on the upper and under-side of the leaflets, at the top and lower third of the same plants under the spray boom. After application, targets were washed individually with an extracting solution of nitric acid (1.0 mol L-1). The tracer deposition on the artificial targets was quantified by atomic absorption spectrofotometry. The effects of air-assisted spray were not significant in relation to spray deposition 48 days after emergence of the bean plants.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000200002
Editor: | São Paulo - Escola Superior de Agricultura "Luiz de Queiroz"
Relação: | 10.1590/S0103-90162003000200002
Formato: | text/html
Fonte: | Scientia Agricola  v.60 n.2 2003
Fonte: | info:eu-repo/semantics/openAccess