Recherche Agronomique
Volume 23, Numéro 1, Pages 65-77
2025-12-28
Estimation Of Water Requirements For Potato Cultivation In Arid Regions
Authors : Amirouche Mawhoub . Smadhi Dalila .
Abstract
Water scarcity is a major constraint in Algeria. This scarcity will become even more acute in the future due to climate change and the development of socio-economic activities, which will result in an ever-increasing demand for water. Market gardening, a strategic crop for the country, is undergoing significant development, particularly potato cultivation, which is the second most important crop after cereals. Potatoes are grown in most regions of the country, and at all seasons of the year (early, late and late season). It is dependent on irrigation. In this context, the present study consists of assessing the irrigation water requirements of potatoes (in season) in the El Oued region, characterised by a desert climate, using the CropWat, over a study period of 23 years (2000-2022). The results obtained showed that irrigation water requirements for crops vary from 3 to 4 mm/day before tuber formation and from 6.5 to 7.5 mm/day once the tubers have formed. The total requirement for a full season is 712.5 mm. The results, which enable efficient and rational use of water resources, are of use to managers and farmers growing potatoes in arid regions.
Keywords
Climate ; El oued ; Irrigation ; Water Productivity; Water Requirement
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