In Ethiopia, soil salinity and sodicity are the most limiting factors affecting the irrigated agriculture and limit crop productivity in arid and semi-arid regions. To such, the study was conducted in Dugda district of East Shoa Zone of Oromia, Ethiopia from 2018 to 2020 with the aim to evaluate the effect of leaching and gypsum treatments on the removal of exchangeable sodium and soluble salts and the effects of these treatments on crop yield. Onion variety (Bombe red), the most commonly produced crop by farmers, was used as the test crop. Three levels of gypsum (50%, 75% and 100% GR) and leaching were combined and arranged in RCBD design with three replications having an area of 3mx4m plot each. It was identified that application of 100% GR (gypsum requirement (and leaching produced economically optimum yield (326 ku/ha). The effect of Gypsum (100% GR) combined with leaching enhanced reclamation process and caused more decreases in EC, pH, SAR, ESP (exchangeable sodium percentage) and Na+ concentration were highly significant (p<0.05). The level of EC, pH, SAR and ESP showed a decreasing trend as the level of Gypsum requirement increases from 50% to 100% combined with leaching. Moreover, the effect of leaching alone did not significantly affect (p<0.05) the levels of Na+ compare to application of 100% GR both alone and supported by leaching. In general, the present results showed that combined application of gypsum and leaching were relatively superior to either one alone in reducing the soil sodicity and increasing the yield. Hence application of combined gypsum and leaching is recommended to improve onion yield on sodic soils. Therefore, considering its economic benefit and its effect on soil sodicity reclamation potential, the results of the study showed that 100% GR combined with leaching is preferred as a strategy in reclamation of salt affected soil.
| Published in | International Journal of Environmental Chemistry (Volume 6, Issue 1) |
| DOI | 10.11648/j.ijec.20220601.11 |
| Page(s) | 1-6 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
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Copyright © The Author(s), 2024. Published by Science Publishing Group |
Soil Sodicity, Application, Gypsum, Leaching, Reclamation, Irrigation, Yield
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APA Style
Abay Challa, Kasahun Kitila, Mekonnen Workina. (2022). Evaluation of Gypsum and Leaching Application on Salinity Reclamation and Crop Yield at Dugada District, East Shoa Zone of Oromia. International Journal of Environmental Chemistry, 6(1), 1-6. https://doi.org/10.11648/j.ijec.20220601.11
ACS Style
Abay Challa; Kasahun Kitila; Mekonnen Workina. Evaluation of Gypsum and Leaching Application on Salinity Reclamation and Crop Yield at Dugada District, East Shoa Zone of Oromia. Int. J. Environ. Chem. 2022, 6(1), 1-6. doi: 10.11648/j.ijec.20220601.11
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Download@article{10.11648/j.ijec.20220601.11,
author = {Abay Challa and Kasahun Kitila and Mekonnen Workina},
title = {Evaluation of Gypsum and Leaching Application on Salinity Reclamation and Crop Yield at Dugada District, East Shoa Zone of Oromia},
journal = {International Journal of Environmental Chemistry},
volume = {6},
number = {1},
pages = {1-6},
doi = {10.11648/j.ijec.20220601.11},
url = {https://doi.org/10.11648/j.ijec.20220601.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijec.20220601.11},
abstract = {In Ethiopia, soil salinity and sodicity are the most limiting factors affecting the irrigated agriculture and limit crop productivity in arid and semi-arid regions. To such, the study was conducted in Dugda district of East Shoa Zone of Oromia, Ethiopia from 2018 to 2020 with the aim to evaluate the effect of leaching and gypsum treatments on the removal of exchangeable sodium and soluble salts and the effects of these treatments on crop yield. Onion variety (Bombe red), the most commonly produced crop by farmers, was used as the test crop. Three levels of gypsum (50%, 75% and 100% GR) and leaching were combined and arranged in RCBD design with three replications having an area of 3mx4m plot each. It was identified that application of 100% GR (gypsum requirement (and leaching produced economically optimum yield (326 ku/ha). The effect of Gypsum (100% GR) combined with leaching enhanced reclamation process and caused more decreases in EC, pH, SAR, ESP (exchangeable sodium percentage) and Na+ concentration were highly significant (p+ compare to application of 100% GR both alone and supported by leaching. In general, the present results showed that combined application of gypsum and leaching were relatively superior to either one alone in reducing the soil sodicity and increasing the yield. Hence application of combined gypsum and leaching is recommended to improve onion yield on sodic soils. Therefore, considering its economic benefit and its effect on soil sodicity reclamation potential, the results of the study showed that 100% GR combined with leaching is preferred as a strategy in reclamation of salt affected soil.},
year = {2022}
}
TY - JOUR T1 - Evaluation of Gypsum and Leaching Application on Salinity Reclamation and Crop Yield at Dugada District, East Shoa Zone of Oromia AU - Abay Challa AU - Kasahun Kitila AU - Mekonnen Workina Y1 - 2022/03/18 PY - 2022 N1 - https://doi.org/10.11648/j.ijec.20220601.11 DO - 10.11648/j.ijec.20220601.11 T2 - International Journal of Environmental Chemistry JF - International Journal of Environmental Chemistry JO - International Journal of Environmental Chemistry SP - 1 EP - 6 PB - Science Publishing Group SN - 2640-1460 UR - https://doi.org/10.11648/j.ijec.20220601.11 AB - In Ethiopia, soil salinity and sodicity are the most limiting factors affecting the irrigated agriculture and limit crop productivity in arid and semi-arid regions. To such, the study was conducted in Dugda district of East Shoa Zone of Oromia, Ethiopia from 2018 to 2020 with the aim to evaluate the effect of leaching and gypsum treatments on the removal of exchangeable sodium and soluble salts and the effects of these treatments on crop yield. Onion variety (Bombe red), the most commonly produced crop by farmers, was used as the test crop. Three levels of gypsum (50%, 75% and 100% GR) and leaching were combined and arranged in RCBD design with three replications having an area of 3mx4m plot each. It was identified that application of 100% GR (gypsum requirement (and leaching produced economically optimum yield (326 ku/ha). The effect of Gypsum (100% GR) combined with leaching enhanced reclamation process and caused more decreases in EC, pH, SAR, ESP (exchangeable sodium percentage) and Na+ concentration were highly significant (p+ compare to application of 100% GR both alone and supported by leaching. In general, the present results showed that combined application of gypsum and leaching were relatively superior to either one alone in reducing the soil sodicity and increasing the yield. Hence application of combined gypsum and leaching is recommended to improve onion yield on sodic soils. Therefore, considering its economic benefit and its effect on soil sodicity reclamation potential, the results of the study showed that 100% GR combined with leaching is preferred as a strategy in reclamation of salt affected soil. VL - 6 IS - 1 ER -
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