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Soil moisture distribution patterns under surface and subsurface drip irrigation systems in sandy soil using neutron scattering technique

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Abstract

This study was carried out at the experimental field station of the Atomic Energy Authority in Anshas, Egypt, by the aim of assessing the soil moisture status under surface and subsurface drip irrigation systems, as a function of the variation in the distance between drippers along and between laterals. Moisture measurements were carried out using neutron moisture meter technique, and water distribution uniformity was assessed by applying Surfer Model. The presented data indicated that the soil moisture distribution and its uniformity within the soil profile under surface drip was to great extent affected by the distance between drippers rather than that between laterals. Generally, the soil moisture distribution under using 30-cm dripper spacing was better than of that under 50 cm. Under subsurface drip irrigation, the allocation of the irrigation system was the factor that dominantly affected the moisture trend under the studied variables. Installing the system at 30 cm from the soil surface is the one to be recommended as it represents the active root zone for most vegetable crops, beside it leads to a better water saving in sandy soils than that allocated at 15 cm depth.

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Authors and Affiliations

  1. Giza, Egypt

    Abdallah E. Badr & Mohamed E. Abuarab

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  1. Abdallah E. Badr
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  2. Mohamed E. Abuarab
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Correspondence to Mohamed E. Abuarab.

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Communicated by A. Kassam.

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Badr, A.E., Abuarab, M.E. Soil moisture distribution patterns under surface and subsurface drip irrigation systems in sandy soil using neutron scattering technique. Irrig Sci 31, 317–332 (2013). https://doi.org/10.1007/s00271-011-0306-0

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  • DOI: https://doi.org/10.1007/s00271-011-0306-0

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