VALIDITY OF SOME INFILTRATION EQUATIONS TO THE EFFECT OF FLOW RATES VARIATION | ||
| AL-TAQANI | ||
| Article 1, Volume 27, Issue 1, February 2014, Pages 0-0 | ||
| Author | ||
| Nadia Ahmed | ||
| Abstract | ||
| The ideal system design and efficient irrigation management requires a detailed knowledge and accurate assessment of the soil infiltration characteristics because it is the first and most important step in the design of irrigation systems, especially the furrow irrigation system. The current study searched in the affect of the flow rate in furrow irrigation on the infiltration rate. where several experiments conducted in a rural area on level furrow of (30m) length in silty loam soil with three different flow rates of (0.5, 1, 1.5) L/ s respectively, water phase advance is recorded with equal distances of 5m with time is recorded then the inflow outflow method is used to measure the intake rate and accumulated intake rate functions for the three flow rates. The results show the influence of flow rate on the advance of water in the furrow and also on the intake rate functions. When testing the validity of some known infiltration equations, it is concluded that the original Kostiakofe equation is the best one among types and followed by Horton equation and developed Kostiakofe equation. Key words: Infiltration, Intake rate, Furrow irrigation | ||
| Keywords | ||
| Infiltration; Intake rate; Furrow irrigation | ||
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