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International Journal of Soil Science
  Year: 2021 | Volume: 16 | Issue: 1 | Page No.: 20-25
DOI: 10.3923/ijss.2021.20.25
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Gypsum and Water Level Effects on Central Rift Valley Sodic Soils of Ethiopia

Alemayehu Kiflu

Background and Objective: There are vast areas of Sodic soils in the world. In Ethiopia, many of the low lands are affected by sodicity and need reclamation for better agricultural productivity. The efficiency of two amendments in reclaiming sodic soil using gypsum and water for better agricultural productivity was investigated. Sodic soils of Adami Tullu Kombolcha were used for the study. Materials and Methods: Gypsum and the different levels of water were applied to packed sandy clay loam soil columns. Gypsum was mixed with topsoil before leaching at application rates of 0, 50, 100 and 150% of the Gypsum Requirement (GR), whereas 1, 2, 3 and 4 Pore Volume (PV) of water were also used to leach the sodium in the soil. Results: Gypsum and water application reduce sodium to an acceptable range for plat production. Exchangeable sodium percentage was reduced by 66.8 and 53.38% for the highest rate of application of water and gypsum respectively. Results indicated that during cation exchange reactions most of the sodium was removed. Conclusion: Both amendments efficiently reduced soil salinity and sodicity. Gypsum at 150% of the GR can be used as an efficient amendment and leaching with 2 PV of water could be recommended to reclaim the studied soil.
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How to cite this article:

Alemayehu Kiflu , 2021. Gypsum and Water Level Effects on Central Rift Valley Sodic Soils of Ethiopia. International Journal of Soil Science, 16: 20-25.

DOI: 10.3923/ijss.2021.20.25






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