92
5.2.3.3 Application of Deficit Irrigation
Kandil et al. (2011) reported that application of 83% of full irrigation resulted in
10% yield losses in onion grown under surface irrigation. Whereas, Taha et  al.
(2019) indicated that saving 20% of the applied water to onion grown under sprinkler system in sandy soil reduced yield by 8%. Thus, we assumed that saving of 6
Table 5.4 Potential added cultivated area of onion as a result of cultivation on raised beds, total
cultivated area and its total production
Added area
Total area (000 ha)
Total production
(000 ha)
(Old+ new+ added)
(000 ton)
Lower Egypt
Alexandria
0
0
0.4
Behira
1.2
10.8
442.0
Gharbia
5.3
25.2
1109.0
Kafr El Sheikh
0.2
0.9
36.1
Dakahlia
2.7
13.0
393.3
Damietta
0.2
1.0
2.1
Sharkia
1.4
6.9
253.6
Ismailia
0
0.2
5.7
Suez
0
0.3
11.2
Menoufia
0.1
0.5
19.0
Qalyubia
1.3
6.0
244.0
Total
12.4
64.9
2547.1
Middle Egypt
Giza
0.1
0.7
18.2
Bani Sweif
0.7
6.4
100.2
Fayoum
0.9
5.5
212.3
Minya
0.2
2.2
87.9
Total
1.9
14.8
418.6
Upper Egypt
Assiut
0.2
0.9
39.3
Sohag
0.6
6.6
304.2
Qena
0.1
1.0
37.8
Luxor
0
0.3
11.2
Aswan
0
0.7
25.3
New Valley
0
1.1
40.6
Total
0.9
10.5
458.4
Bordered governorates
Marsa Matrouh
0
0.3
4.3
Total
0
0.3
4.3
Grand total
15.3
90.5
3544.7
S. Ouda et al.