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Artigo Acesso aberto Produção Nacional Revisado por pares
BIBTEX RIS

Performance analysis of a trickle irrigation subunit installed in an apple orchard

2002; Instituto de Tecnologia do Paraná (Tecpar); Volume: 45; Issue: 4 Linguagem: Inglês

10.1590/s1516-89132002000600017

ISSN

1678-4324

Autores

Olívio José Soccol, Mário Nestor Ullmann, José Antônio Frizzone,

Tópico(s)

Plant Physiology and Cultivation Studies

Resumo

Studies were carried out to evaluate the "xique-xique" irrigation system of a trickle irrigated subunit. Initial results showed that the system's performance was average, any Emission Uniformity, Statistical Uniformity and Coefficient of Global Variation were 74.51, 77.69, and 22.31%, respectively. The efficiency parameters were below expectations, and values of Application Efficiency (Ae), Storage Efficiency (Se), Deep Percolation (Dp), Deficit Degree (DD) and Adequacy Degree (a) were 100, 47.83, 0, 52.17 and 0% respectively. By adopting new management procedures, it was possible to improve the system's efficiency, reaching values of 90.20, 91.68, 9.80, 8.32 and 52.87% for Ae, Se, Dp, DD and "a", respectively.

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