Water movement in soil under micro trickle irrigation system.

Includes references.

Water distribution pattern is influenced by application rate of water and soil properties. In this study, low application rate "q" of water was used as 0.25, 0.5, 1.2, and 2 Lh-1 and two types of soil sandy soil and clay soil. Wet radius at the surface (x), diagonal wetting front (z), and the depth of the wetting front (y) under the dripper were measured at different application times" t" of (30 to 270 min) for each treatment. The results showed that wetted front advance in directions x, y and z were represented by derived function expressed as x, y, z =c1 qC tb', where: C1,C and b are constants depend on soil type and required direction.

Summary in Arabic.

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