Abstract

  In Algeria, water supply through rainfall is limited. To this end, understanding crop water needs is essential to improve irrigation practices, planning and efficient water use. In this perspective, the study carried out highlights the evaluation of these parameters by calculating the reference evapotranspiration (ET0) over a period of 22 years (1997-2018), for two distinct periods, one wet and the other dry. The various calculation steps were carried out, using the AquaCrop model, taking into account the evolution of the potato crop growth cycle in the Oued Souf region. The results showed that the average rainfall over the climate series is 69.74 mm, fluctuating between a minimum of 21 mm (dry period) and a maximum of 230.6 mm (wet period). This evolution characterizes an average reference evapotranspiration, which reaches nearly 1528.8mm, varying between 1755.8mm and 1309.0mm. The results show a close relationship with irrigation water requirement (IWR) for potato cultivation in wet (690.0mm) and dry (735.2mm) conditions. Indeed, the more severe the climatic conditions, the more crop water requirement (CWR) increases (709.0 mm to 720.0mm). These results show that the Aquacrop model can be used as a decision-making tool, allowing managers and users in the field to evaluate and optimize the use of irrigation water.

Keywords: AquaCrop; Potato; Irrigation Water Requirement; Frequency Analysis; ET0

References

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Citation

Citation: M Amirouche., et al. “Simulating Crop Water Requirements of Potato in Arid Conditions in South Algeria of Different Scenarios Using AquaCrop Model". Acta Scientific Agriculture 4.2 (2020): 23-25.

Copyright

Copyright: © 2020 M Amirouche., et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.