Abstract
Sodic soils are defined as soils in which the exchangeable sodium percentage (ESP) exceeds a value of 15. When the ESP is as little as 15, the swelling and dispersion of the soil will result in a decrease in the soil permeability to water and air which interferes with the growth of most crop plants (United States Salinity Laboratory Staff, 1954; Seatz and Peterson, 1964; Reeve and Fireman, 1967). Sodic soils may be puddled easily and upon drying, the compact blocks that form may present a physical barrier to seed germination, root penetration and a hindrance to irrigation.
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Magdoff, F., Bresler, E. (1973). Evaluation of Methods for Reclaiming Sodic Soils with CaCl2 . In: Hadas, A., Swartzendruber, D., Rijtema, P.E., Fuchs, M., Yaron, B. (eds) Physical Aspects of Soil Water and Salts in Ecosystems. Ecological Studies, vol 4. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-65523-4_44
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DOI: https://doi.org/10.1007/978-3-642-65523-4_44
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