Please use this identifier to cite or link to this item:
Type: Artigo de periódico
Title: Water Depth, Filling Time And Volume Of Wick Irrigation Equipment And Determination Of Water Distribution Uniformity In Substrates [altura Da Lâmina, Tempo E Volume De Enchimento De Um Equipamento De Irrigação Por Pavio E Determinação Da Uniformidade De Distribuição De água Em Substratos]
Author: Ferrarezi R.S.
dos Santos L.N.S.
de Sousa A.C.M.
Pereira F.F.S.
Elaiuy M.L.C.
Torrel U.
Matsura E.E.
Abstract: The aims of this study were to evaluate the water depth, filling time and volume in a wick irrigation equipment using auto compensating gutters and to determine the water distribution uniformity (WDU) in these equipments filled with organic commercial substrates (pine bark/PB and coconut coir/CC). We assembled two experimental modules in a completely randomized design with five replications. There was variation in water depth measurements (1.6 to 4.0 cm), even with the equipment leveled. Average filling time was 6h22min for Module 1 with PB and 3h45min for Module 2 with CC. The filling volume was variable, showing that gutters in the extremities (No. 1 and 5) had lower volumes in Module 1 and in the beginning (No. 1 and 2) in Module 2. Volumetric soil moisture (O) ranged from 42 to 94% in Module 1 and from 24 to 72% in Module 2, with isolated points of desiccation and/or flooding. Water depth, filling time and volume were disuniform in all experimental modules and auto compensating gutters, indicating equipment imperfections. Water distribution was variable in both substrates due to their hydro-physical characteristics and also water depth in the gutters, with higher humidity and water distribution uniformity in pine bark than in coconut coir.
Rights: aberto
Identifier DOI: 10.1590/S0006-87052012005000015
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.