期刊论文详细信息
Engenharia Agrícola
Wet bulbs from the subsurface drip irrigation with water supply and treated sewage effluent
Marcelo L. C. Elaiuy1  Leonardo N. S. Dos Santos1  Allan C. M. De Sousa1  Claudinei F. Souza1  Edson E. Matsura​1 
关键词: oxisoil;    wastewater;    TDR;    water content;    electrical conductivity;    latossolo vermelho distroférrico;    águas residuais;    TDR;    umidade;    condutividade elétrica;   
DOI  :  10.1590/1809-4430-Eng.Agríc.v35n2p242-253/2015
来源: SciELO
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【 摘 要 】

The use of treated sewage effluent (TSE) combined with the subsurface drip irrigation (SDI) method in agriculture can decrease the costs of agricultural production, in attempts to fertigate crops more efficiently. In this study it was compared the dimensions of the wet bulb formed by the application of TSE and municipal water supply (MWS) in an Oxisoil. We have evaluated the effect of water quality and discharge between drippers used in sugarcane crop. Three trenches were opened and 21 three-rod TDR probes were setup in a mesh and a dripper was buried at 0.30 m, for each constant discharge of 1.0 L h-1and 1.6 L h-1. Comparing results from different wetted soil profiles it was observed that the vertical and horizontal dimensions of the wet bulb are similar for both MWS and TSE, being peculiars according to the discharges used and volume applied. Regardless the water quality, an increase of 60% in discharge decreased the deepest infiltration.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License

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