Data/hora: 05/06/2024 00:22:32

Provedor de dados: | 65
País: | Brazil
Título: | Influence of the wind on water application uniformity of a mechanical lateral move irrigation equipment using rotating plate sprinklers
Autores: | Faria,Lessandro Coll; Beskow,Samuel; Colombo,Alberto; Nörenberg,Bernardo Gomes; Rettore Neto,Osvaldo; Simões,Matheus Chagas.
Data: | 2016-01-01
Ano: | 2016
Palavras-chave: | Irrigated rice; Sprinkler; In-field tests; Irrigation uniformity.
Resumo: | ABSTRACT: Investigations demonstrate that the wind is the factor that causes the biggest negative influence on water application of sprinkler irrigation systems. Therefore, this paper aims to evaluate, in in-field conditions, the influence of wind on the water distribution uniformity of a mechanical lateral move sprinkler system used for irrigation in rice crop in the South of Rio Grande do Sul State, Brazil. The equipment is located at the Campo Experimental de Terras Baixas (ETB) of EMBRAPA/CPACT and operates with water emitters model I-Wob installed in drop tubes in a distance of 2.8m above the soil surface, having a uniform space of 2.3m between each other and pressure regulators of 68.9kPa. Sixteen in-field evaluations were done and they permitted to infer that the higher is the wind speed, the lower are the values of Christiansen Uniformity (CU) and of Distribution Uniformity (DU) coefficients. Besides, it can be affirmed that even in unfavorable wind conditions, the mechanical lateral move irrigation equipment presented desirable indexes of water application uniformity.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000100083
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20141558
Formato: | text/html
Fonte: | Ciência Rural  v.46 n.1 2016
Fonte: | info:eu-repo/semantics/openAccess