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© Springer Nature Switzerland AG 2020
S. Ouda et al., Deficit Irrigation, https://doi.org/10.1007/978-3-030-35586-9_5
Chapter 5
Vegetable Crops and Deficit Irrigation
in Egypt
Samiha Ouda, Tahany Noreldin, and Abd El-Hafeez Zohry
Abstract An assessment of the potential effects of applying deficit irrigation to
onion and tomato grown on raised beds on its production was done. Data on the
cultivated area and productivity of onion and tomato were collected for both old and
new lands on governorate level, as well as weather data in 2017 and water requirements were calculated. Five production alternatives were quantified on governorate
level, namely traditional cultivation, raised beds cultivation, application of deficit
irrigation, calculation of production without investing the saved water in adding
new area, and calculation of production with investing the saved water in adding
new area. In all alternatives, water productivity was calculated. The results showed
that using the saved water from cultivation on raised beds and application of deficit
irrigation to cultivate new areas with onion resulted in 28 and 32% increase in its
production, compared to its value under traditional cultivation. Furthermore, cultivation on raised beds and application of deficit irrigation without using the added
area to cultivated new lands resulted in increasing total production by 11 and 6%,
respectively. With respect to tomato, using the saved water from cultivation on
raised beds and application of deficit irrigation to cultivate new areas with tomato
resulted in 18 and 24% increase in its production, compared to its value under traditional cultivation. Whereas, cultivation on raised beds and application of deficit irrigation without using the added area to cultivated new lands resulted in increasing
total production by 6 and 1%, respectively. In both crops, water productivity was the
higher when deficit irrigation was applied and the saved irrigation water was used to
cultivate new areas with the crop, compare to traditional cultivation.
Keywords Onion · Tomato · Raised beds cultivation · Irrigation water saving ·
Water productivity
S. Ouda (*) · T. Noreldin
Water Requirements and Field Irrigation Research Department, Soils, Water and Environment
Research Institute, Agricultural Research Center, Giza, Egypt
A. E.-H. Zohry
Crop Intensification Research Department, Field Crops Research Institute, Agricultural
Research Center, Giza, Egypt
© Springer Nature Switzerland AG 2020
S. Ouda et al., Deficit Irrigation, https://doi.org/10.1007/978-3-030-35586-9_5
Chapter 5
Vegetable Crops and Deficit Irrigation
in Egypt
Samiha Ouda, Tahany Noreldin, and Abd El-Hafeez Zohry
Abstract An assessment of the potential effects of applying deficit irrigation to
onion and tomato grown on raised beds on its production was done. Data on the
cultivated area and productivity of onion and tomato were collected for both old and
new lands on governorate level, as well as weather data in 2017 and water requirements were calculated. Five production alternatives were quantified on governorate
level, namely traditional cultivation, raised beds cultivation, application of deficit
irrigation, calculation of production without investing the saved water in adding
new area, and calculation of production with investing the saved water in adding
new area. In all alternatives, water productivity was calculated. The results showed
that using the saved water from cultivation on raised beds and application of deficit
irrigation to cultivate new areas with onion resulted in 28 and 32% increase in its
production, compared to its value under traditional cultivation. Furthermore, cultivation on raised beds and application of deficit irrigation without using the added
area to cultivated new lands resulted in increasing total production by 11 and 6%,
respectively. With respect to tomato, using the saved water from cultivation on
raised beds and application of deficit irrigation to cultivate new areas with tomato
resulted in 18 and 24% increase in its production, compared to its value under traditional cultivation. Whereas, cultivation on raised beds and application of deficit irrigation without using the added area to cultivated new lands resulted in increasing
total production by 6 and 1%, respectively. In both crops, water productivity was the
higher when deficit irrigation was applied and the saved irrigation water was used to
cultivate new areas with the crop, compare to traditional cultivation.
Keywords Onion · Tomato · Raised beds cultivation · Irrigation water saving ·
Water productivity
S. Ouda (*) · T. Noreldin
Water Requirements and Field Irrigation Research Department, Soils, Water and Environment
Research Institute, Agricultural Research Center, Giza, Egypt
A. E.-H. Zohry
Crop Intensification Research Department, Field Crops Research Institute, Agricultural
Research Center, Giza, Egypt