190
8.5 Wheat Production-Consumption Gap Using Saved Water
from Other Winter Crops
Table 8.20 showed that using the total saved water resulted from Egyptian clover
and onion could result in cultivating 175.3 thousand hectares of wheat and will
produce 469.0 thousand tons of wheat seeds. The saved water from application of
deficit irrigation to wheat, wheat intercropping systems, and the saved water resulted
from the two crops; the total wheat production will reach 12,831.7 million tons,
which will reduce the gap to reach 9065.7 million tons. In this case, wheat selfsufficiency ratio could reach 59%.
Table 8.20 also showed that more governorates could attain surplus in wheat
production. These governorates are Behira, and Kafr El-Sheik, in Lower Egypt, and
New Valley in Upper Egypt.
8.6 Wheat Water Productivity Under the Studied Production
Alternatives
Wheat water productivity under the five production alternatives are presented in
Table 8.19. Under production alternative (1), namely wheat traditional cultivation,
the lowest values of water productivity was attained. Cultivation on raised beds
(production alternative 2) increased the values of water productivity as a result of
producing more wheat seeds with the same amount of irrigation water applied under
traditional cultivation. Similarly, the values of water productivity under application
of deficit irrigation on raised beds (production alternative 3) were higher than its
value under cultivation on raised beds as a result of producing more wheat seeds
with the same amount of water applied under traditional cultivation.
In production alternative (4), the amount of water irrigated wheat under traditional cultivation was used to produce wheat under application of deficit irrigation
on raised beds, in addition to wheat produced from implementing its intercropping
systems (wheat did not use any extra irrigation water because it used the water
applied to the main crop in the intercropping system). Therefore, water productivity
of wheat was the highest under production alternative (4). Regarding production
alternative (5), where wheat total production attained from application of deficit
irrigation on raised beds, intercropping systems and using the saved water from the
two winter crops to produce more wheat seeds, water productivity values were
lower than its counterpart values under production alternative (4) because more
water was involved in wheat production.
The results in Table 8.21 also indicated that the average of wheat water productivity values on over all the studied governorates will be 0.91, 1.13, 1.20, 1.81 and
1.92 kg/m
3
for production alternative 1, 2, 3, 4 and 5 respectively.
S. Ouda and A. E.-H. Zohry
8.5 Wheat Production-Consumption Gap Using Saved Water
from Other Winter Crops
Table 8.20 showed that using the total saved water resulted from Egyptian clover
and onion could result in cultivating 175.3 thousand hectares of wheat and will
produce 469.0 thousand tons of wheat seeds. The saved water from application of
deficit irrigation to wheat, wheat intercropping systems, and the saved water resulted
from the two crops; the total wheat production will reach 12,831.7 million tons,
which will reduce the gap to reach 9065.7 million tons. In this case, wheat selfsufficiency ratio could reach 59%.
Table 8.20 also showed that more governorates could attain surplus in wheat
production. These governorates are Behira, and Kafr El-Sheik, in Lower Egypt, and
New Valley in Upper Egypt.
8.6 Wheat Water Productivity Under the Studied Production
Alternatives
Wheat water productivity under the five production alternatives are presented in
Table 8.19. Under production alternative (1), namely wheat traditional cultivation,
the lowest values of water productivity was attained. Cultivation on raised beds
(production alternative 2) increased the values of water productivity as a result of
producing more wheat seeds with the same amount of irrigation water applied under
traditional cultivation. Similarly, the values of water productivity under application
of deficit irrigation on raised beds (production alternative 3) were higher than its
value under cultivation on raised beds as a result of producing more wheat seeds
with the same amount of water applied under traditional cultivation.
In production alternative (4), the amount of water irrigated wheat under traditional cultivation was used to produce wheat under application of deficit irrigation
on raised beds, in addition to wheat produced from implementing its intercropping
systems (wheat did not use any extra irrigation water because it used the water
applied to the main crop in the intercropping system). Therefore, water productivity
of wheat was the highest under production alternative (4). Regarding production
alternative (5), where wheat total production attained from application of deficit
irrigation on raised beds, intercropping systems and using the saved water from the
two winter crops to produce more wheat seeds, water productivity values were
lower than its counterpart values under production alternative (4) because more
water was involved in wheat production.
The results in Table 8.21 also indicated that the average of wheat water productivity values on over all the studied governorates will be 0.91, 1.13, 1.20, 1.81 and
1.92 kg/m
3
for production alternative 1, 2, 3, 4 and 5 respectively.
S. Ouda and A. E.-H. Zohry