SOIL MOISTURE DISTRIBUITION IN A SURFACE DRIP IRRIGATED SYSTEM WITH DIFFERENT GROUND INCLINATIONS - DOI: 10.13083/1414-3984/reveng.v23n3p261-269

Authors

  • Aluízio Antônio Fernandes da Silva
  • José Antonio Rodrigues de Souza
  • Wanderbeth Belchior de Carvalho
  • Rafael Mendonça
  • Débora Astoni Moreira

DOI:

https://doi.org/10.13083/reveng.v23i3.576

Keywords:

bulbo molhado, irrigação localizada, vazão

Abstract

Information on wet bulb geometry is important for the design and management of drip irrigation projects. There are several studies on the dimensions and characteristics of the wet bulb associating flow, application times and soil types, however literature still lacks sources regarding the behavior of irrigated land in regions with different slopes. Thus, the aim of this study was to evaluate the dimensions and characteristics of the wet bulb in surface drip irrigation in function of the drip flow and slope. The experiment was conducted at the Federal Institute Goiano - Câmpus Urutaí, in Urutaí, GO. In the study we adopted three flows (4, 5 and 8 L h-1) and four ground inclinations (0, 10, 20 and 30%), with three replications, totaling in each assessment a water volume of 2.17 L applied to the soil. After one hour of application, disturbed soil samples were collected with a screw auger to determine its moisture. With moisture data graphical representations of the wet bulbs were constructed, and from these it was observed that both the drip flow rate and the slope of the land influenced the wet bulb geometry.

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Published

2015-07-02

How to Cite

Silva, A. A. F. da, Souza, J. A. R. de, Carvalho, W. B. de, Mendonça, R., & Moreira, D. A. (2015). SOIL MOISTURE DISTRIBUITION IN A SURFACE DRIP IRRIGATED SYSTEM WITH DIFFERENT GROUND INCLINATIONS - DOI: 10.13083/1414-3984/reveng.v23n3p261-269. Engineering in Agriculture, 23(3), 261–269. https://doi.org/10.13083/reveng.v23i3.576

Issue

Vol. 23 No. 3 (2015)

Section

Water and environmental resources

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