Irrigation technologies that save water are necessary to ensure the economic and environmental sustainability of agriculture. Accurate irrigation planning is critical to improving irrigation efficiency. Therefore, this activity aimed to evaluate the responses of potato plants to the irrigation system (when and how much) and to determine the water productivity (WP) under optimal irrigation system. During the 2020 and 2021 irrigation season, a field trial of five irrigation treatments (20% ASMDL, 40% ASMDL, 60% ASMDL, 80% ASMDL and 100% ASMDL (FAO recommended ASMDL) irrigation) was conducted in Odo Shakiso district. The experiment was set up in a randomized complete block design (RCBD) with three repetitions. For the Irrigation Treatment at Allowable Soil Moisture Depletion (ASMDL), irrigation was scheduled when 35% of the total available water was depleted. Results showed that potato tuber yield, number of tubers per plant, and water productivity were significantly affected between treatments (P<0.05). Plant height, tuber weight and non-marketable tuber yield did not vary significantly between treatments. The highest marketable tuber yield (32.91 t ha-1) was achieved using irrigation water with 100% ASMDL. Reducing soil moisture loss from the recommended level (0.35) did not increase water productivity. However, no significant difference in water productivity was observed between irrigation water application at 60% of the ASMDL and irrigation water application at 100% of the ASMDL (FAO recommended depletion limit). Therefore, it can be concluded that the application of the FAO recommended ASMDL can provide the highest marketable tuber yield and water productivity of potatoes in the study area and in a similar agro ecology. Therefore, further investigation and verification work under different climatic conditions is recommended.
| Published in | International Journal of Applied Agricultural Sciences (Volume 9, Issue 5) |
| DOI | 10.11648/j.ijaas.20230905.13 |
| Page(s) | 143-148 |
| 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. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Allowable Soil Moisture Depletion Level (ASMDL), Potato, Irrigation Regime, Water Productivity (WP)
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APA Style
Tesfaye Gragn Debele, Alemayehu Mamo Burayu, Obsa Wolde Dilgasa. (2023). Determination of Optimal Irrigation Using Soil Moisture Depletion on Yield and Water Productivity of Potato (Solanum tuberosum L.) at Odo Shakiso District, Southern Ethiopia. International Journal of Applied Agricultural Sciences, 9(5), 143-148. https://doi.org/10.11648/j.ijaas.20230905.13
ACS Style
Tesfaye Gragn Debele; Alemayehu Mamo Burayu; Obsa Wolde Dilgasa. Determination of Optimal Irrigation Using Soil Moisture Depletion on Yield and Water Productivity of Potato (Solanum tuberosum L.) at Odo Shakiso District, Southern Ethiopia. Int. J. Appl. Agric. Sci. 2023, 9(5), 143-148. doi: 10.11648/j.ijaas.20230905.13
AMA Style
Tesfaye Gragn Debele, Alemayehu Mamo Burayu, Obsa Wolde Dilgasa. Determination of Optimal Irrigation Using Soil Moisture Depletion on Yield and Water Productivity of Potato (Solanum tuberosum L.) at Odo Shakiso District, Southern Ethiopia. Int J Appl Agric Sci. 2023;9(5):143-148. doi: 10.11648/j.ijaas.20230905.13
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Download@article{10.11648/j.ijaas.20230905.13,
author = {Tesfaye Gragn Debele and Alemayehu Mamo Burayu and Obsa Wolde Dilgasa},
title = {Determination of Optimal Irrigation Using Soil Moisture Depletion on Yield and Water Productivity of Potato (Solanum tuberosum L.) at Odo Shakiso District, Southern Ethiopia},
journal = {International Journal of Applied Agricultural Sciences},
volume = {9},
number = {5},
pages = {143-148},
doi = {10.11648/j.ijaas.20230905.13},
url = {https://doi.org/10.11648/j.ijaas.20230905.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijaas.20230905.13},
abstract = {Irrigation technologies that save water are necessary to ensure the economic and environmental sustainability of agriculture. Accurate irrigation planning is critical to improving irrigation efficiency. Therefore, this activity aimed to evaluate the responses of potato plants to the irrigation system (when and how much) and to determine the water productivity (WP) under optimal irrigation system. During the 2020 and 2021 irrigation season, a field trial of five irrigation treatments (20% ASMDL, 40% ASMDL, 60% ASMDL, 80% ASMDL and 100% ASMDL (FAO recommended ASMDL) irrigation) was conducted in Odo Shakiso district. The experiment was set up in a randomized complete block design (RCBD) with three repetitions. For the Irrigation Treatment at Allowable Soil Moisture Depletion (ASMDL), irrigation was scheduled when 35% of the total available water was depleted. Results showed that potato tuber yield, number of tubers per plant, and water productivity were significantly affected between treatments (P-1) was achieved using irrigation water with 100% ASMDL. Reducing soil moisture loss from the recommended level (0.35) did not increase water productivity. However, no significant difference in water productivity was observed between irrigation water application at 60% of the ASMDL and irrigation water application at 100% of the ASMDL (FAO recommended depletion limit). Therefore, it can be concluded that the application of the FAO recommended ASMDL can provide the highest marketable tuber yield and water productivity of potatoes in the study area and in a similar agro ecology. Therefore, further investigation and verification work under different climatic conditions is recommended.},
year = {2023}
}
TY - JOUR T1 - Determination of Optimal Irrigation Using Soil Moisture Depletion on Yield and Water Productivity of Potato (Solanum tuberosum L.) at Odo Shakiso District, Southern Ethiopia AU - Tesfaye Gragn Debele AU - Alemayehu Mamo Burayu AU - Obsa Wolde Dilgasa Y1 - 2023/09/27 PY - 2023 N1 - https://doi.org/10.11648/j.ijaas.20230905.13 DO - 10.11648/j.ijaas.20230905.13 T2 - International Journal of Applied Agricultural Sciences JF - International Journal of Applied Agricultural Sciences JO - International Journal of Applied Agricultural Sciences SP - 143 EP - 148 PB - Science Publishing Group SN - 2469-7885 UR - https://doi.org/10.11648/j.ijaas.20230905.13 AB - Irrigation technologies that save water are necessary to ensure the economic and environmental sustainability of agriculture. Accurate irrigation planning is critical to improving irrigation efficiency. Therefore, this activity aimed to evaluate the responses of potato plants to the irrigation system (when and how much) and to determine the water productivity (WP) under optimal irrigation system. During the 2020 and 2021 irrigation season, a field trial of five irrigation treatments (20% ASMDL, 40% ASMDL, 60% ASMDL, 80% ASMDL and 100% ASMDL (FAO recommended ASMDL) irrigation) was conducted in Odo Shakiso district. The experiment was set up in a randomized complete block design (RCBD) with three repetitions. For the Irrigation Treatment at Allowable Soil Moisture Depletion (ASMDL), irrigation was scheduled when 35% of the total available water was depleted. Results showed that potato tuber yield, number of tubers per plant, and water productivity were significantly affected between treatments (P-1) was achieved using irrigation water with 100% ASMDL. Reducing soil moisture loss from the recommended level (0.35) did not increase water productivity. However, no significant difference in water productivity was observed between irrigation water application at 60% of the ASMDL and irrigation water application at 100% of the ASMDL (FAO recommended depletion limit). Therefore, it can be concluded that the application of the FAO recommended ASMDL can provide the highest marketable tuber yield and water productivity of potatoes in the study area and in a similar agro ecology. Therefore, further investigation and verification work under different climatic conditions is recommended. VL - 9 IS - 5 ER -
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