Data/hora: 13/06/2024 08:56:01

Provedor de dados: | 1
País: | Brazil
Título: | The mixture volume sprayed by hydraulic and centrifugal energy nozzles for the control of Asian soybean rust
Autores: | Costa, Lilian Lúcia; Ferreira, Marcelo da Costa; Campos, Henrique Borges Neves; Carvalho, Giorge Gomes França de; Barbosa, José Carlos.
Data: | 2015-10-01
Ano: | 2015
Palavras-chave: | Spray nozzle; Coverage; Deposition; Glycine max; Phakopsora pachyrhizi; Disease severity.
Resumo: | The objective of this work was to evaluate a means of controlling ASR (Phakopsora pachyrhizi H. Sydow &amp; P. Sydow) by applying reduced fungicide volumes in association with spray nozzles using either hydraulic or centrifugal energy. Two experiments resulted from that objective: soybean plants (Glycine max (L.) Merril) of the ‘BRS Valiosa RR’ cultivar were grown at the Experimental Farm of the University of São Paulo State (Unesp) in Jaboticabal, Brazil. The treatments were distributed in the field according to a randomized complete block design with four replications. The treatments consisted of the volumes of 50, 100, and 150 L ha-1 (droplets resulting from hydraulic energy) and 17, 35, and 50 L ha-1 (droplets resulting from centrifugal energy). An additional treatment was applied without fungicide (i.e., baseline treatment). The volume of 150 L ha-1 with droplets formed by hydraulic energy permitted the best pathogen control using the fungicide azoxystrobina and cyproconazole in comparison with the other treatments. The volume of 17 L ha-1 with the droplets formed by centrifugal energy was the least efficient and resulted in the highest rust severity and the lowest grain yield.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês

Identificador:

http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19598

10.4025/actasciagron.v37i4.19598

Editor: | Universidade Estadual de Maringá
Relação: | http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19598/pdf_94
Formato: | application/pdf

Fonte:

Acta Scientiarum. Agronomy; v. 37, n. 4 (2015); 425-433

Acta Scientiarum. Agronomy; v. 37, n. 4 (2015); 425-433

1807-8621

1679-9275