Analysis of Soil Water-salt Distribution and Irrigation Performance under Brackish Water Film Hole Furrow Irrigation
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    Abstract:

    Effects of flow rate and opening rate under brackish water film hole furrow irrigation on soil water salt distribution and irrigation performance were studied through a field experiment. Results show that surface water flow advance time and distance conforms to a power function distribution, water advance speed is effected by flow rate and opening rate. Film hole furrow irrigation can effectively regulate soil water salt distribution of 0~40cm by reducing evaporation, inhibiting salt to the surface, soil salt leaching is significant. Ea increases with the opening rate, with the changes of flow rate is not obvious. Ed decreases with the increase of flow rate and the opening rate. With the increase of opening rate, Es increases first then decreases, with the change of flow rate is not obvious. Through variance analysis influence factors of irrigation performance sorting, optimization technology combinations for experimental zone was preliminary obtained.

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  • Online: November 07,2013
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