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Information Journal Paper

Title

EVALUATION OF SOIL SALINITY DISTRIBUTION UNDER THREE IRRIGATION SCENARIOS IN BASIN IRRIGATION SYSTEM

Pages

  196-206

Abstract

 Since the tendency of water and soil to salinization is a big problem in arid and Semi-arid regions, using proper management measures is necessary to deal with this problem. One of the principles of management in this regard is the conjunctive use of saline and fresh water resources. It is applied in two ways; first mixing the fresh and saline waters and the second is using them alternatively. This research was conducted to investigate the effect of three conjunction methods on soil salinity distribution in the root zone. A completely randomized block design was used consisting of three treatments and three replications in nine lysimeters. Every lysimeter was filled to 1 m depth with soil in layers having 10 cm thickness, with a bulk density of 1.46 gr/cm3. The lysimeter was irrigated five times to reach soil water to field capacity (FC=34.33%). In the first treatment (Blending), irrigation was done with a mixture of saline and ordinary waters (EC=7.5 dS/m). In the second treatment (Half-Alternate) at each irrigation event, half of the irrigation water was applied with saline water (EC=14 dS/m) and the other half with the ordinary water (EC=1 dS/m). In the third treatment (One-Alternate) irrigation was practiced with ordinary and saline water alternately (one irrigation with ordinary water and the next one with fresh water). The result shows that the average salinity of soil (soil: water ratio 1: 5) in blending, half-alternate and one-alternate experiments up to 30 cm soil depth were 6.86, 6.74 and 4.80 dS/m respectively. The result shows that the one-alternate treatment has much less salinity in top layers (0-30 cm) than other treatments. In lower depths (30-60), the blending treatment has better conditions because in this treatment, salinity was 2.2 dS/m less than one-alternate treatment. The EC value was 9.92 and 12.1 dS/m in the blending and one-alternate treatment, respectively.

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    Cite

    APA: Copy

    ZAREI, M.A., TABATABAEI, S.H., SHAYANNEJAD, M., & BEIGI, H.. (2008). EVALUATION OF SOIL SALINITY DISTRIBUTION UNDER THREE IRRIGATION SCENARIOS IN BASIN IRRIGATION SYSTEM. JOURNAL OF RESEARCH IN AGRICULTURAL SCIENCE, 3(2), 196-206. SID. https://sid.ir/paper/115277/en

    Vancouver: Copy

    ZAREI M.A., TABATABAEI S.H., SHAYANNEJAD M., BEIGI H.. EVALUATION OF SOIL SALINITY DISTRIBUTION UNDER THREE IRRIGATION SCENARIOS IN BASIN IRRIGATION SYSTEM. JOURNAL OF RESEARCH IN AGRICULTURAL SCIENCE[Internet]. 2008;3(2):196-206. Available from: https://sid.ir/paper/115277/en

    IEEE: Copy

    M.A. ZAREI, S.H. TABATABAEI, M. SHAYANNEJAD, and H. BEIGI, “EVALUATION OF SOIL SALINITY DISTRIBUTION UNDER THREE IRRIGATION SCENARIOS IN BASIN IRRIGATION SYSTEM,” JOURNAL OF RESEARCH IN AGRICULTURAL SCIENCE, vol. 3, no. 2, pp. 196–206, 2008, [Online]. Available: https://sid.ir/paper/115277/en

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