68
It worth noting that the total required irrigation water to attain the amount of
production presented in the Table 4.4 is the value presented in Table 4.3 under traditional cultivation. Thus, with cultivation on raised beds more Egyptian clover
could be obtained, as well as higher land and water productivity.
4.2.3.3 Application of Deficit Irrigation
Abouelenein et al. (2010) showed that application of 70% of full irrigation to
Egyptian clover resulted in 11% yield losses under surface irrigation in clay soil.
Similarly, Khalil and Abouelenein (2012) reported that application of 70% of full
irrigation to Egyptian clover resulted in 17% yield losses.
Thus, to reduced yield losses under application of deficit irrigation, we assumed
that application of 93% of full irrigation water under raised beds cultivation in the
old lands will reduced Egyptian clover yield by 4%. Furthermore, we assumed that
application of 95% of full irrigation in the new lands under sprinkler system will
reduce yield by 5%.
Table 4.5 indicated that if we invest the saved irrigation water amounts in cultivating new lands, 51.0 thousand hectares can be added, which will increase the
cultivated area to 805.9 thousand hectares, or by extra 7%, compared to the total
cultivated area of Egyptian clover presented in Table 4.3 under traditional cultivation. Consequently, the total production of Egyptian clover could be increase to
61,933.8 million tons, or by 38%, compared to the total production of Egyptian
clover under traditional cultivation.
4.2.3.4 Water Conservation and Egyptian Clover National Production
Another assumption was made, where the saved irrigation water from cultivation on
raised beds and application of deficit irrigation could be invested in increasing the
cultivated area of another crop to reduce its production-consumption gap.
Added area
(000 ha)
Total area (000 ha)
(old + new + added)
Total production
(000 ton)
Luxor
0.7
3.8
155.3
Aswan
0.3
2.8
156.3
New Valley
0
7.6
501.4
Total
15.5
90.6
7341.8
Bordered governorates
Marsa
Matrouh
0
2.1
40.4
North Sinai
0
0.002
0.05
Total
0
2.1
40.4
Grand total
136.7
754.9
58,371.9
Table 4.4 (continued)
S. Ouda et al.
It worth noting that the total required irrigation water to attain the amount of
production presented in the Table 4.4 is the value presented in Table 4.3 under traditional cultivation. Thus, with cultivation on raised beds more Egyptian clover
could be obtained, as well as higher land and water productivity.
4.2.3.3 Application of Deficit Irrigation
Abouelenein et al. (2010) showed that application of 70% of full irrigation to
Egyptian clover resulted in 11% yield losses under surface irrigation in clay soil.
Similarly, Khalil and Abouelenein (2012) reported that application of 70% of full
irrigation to Egyptian clover resulted in 17% yield losses.
Thus, to reduced yield losses under application of deficit irrigation, we assumed
that application of 93% of full irrigation water under raised beds cultivation in the
old lands will reduced Egyptian clover yield by 4%. Furthermore, we assumed that
application of 95% of full irrigation in the new lands under sprinkler system will
reduce yield by 5%.
Table 4.5 indicated that if we invest the saved irrigation water amounts in cultivating new lands, 51.0 thousand hectares can be added, which will increase the
cultivated area to 805.9 thousand hectares, or by extra 7%, compared to the total
cultivated area of Egyptian clover presented in Table 4.3 under traditional cultivation. Consequently, the total production of Egyptian clover could be increase to
61,933.8 million tons, or by 38%, compared to the total production of Egyptian
clover under traditional cultivation.
4.2.3.4 Water Conservation and Egyptian Clover National Production
Another assumption was made, where the saved irrigation water from cultivation on
raised beds and application of deficit irrigation could be invested in increasing the
cultivated area of another crop to reduce its production-consumption gap.
Added area
(000 ha)
Total area (000 ha)
(old + new + added)
Total production
(000 ton)
Luxor
0.7
3.8
155.3
Aswan
0.3
2.8
156.3
New Valley
0
7.6
501.4
Total
15.5
90.6
7341.8
Bordered governorates
Marsa
Matrouh
0
2.1
40.4
North Sinai
0
0.002
0.05
Total
0
2.1
40.4
Grand total
136.7
754.9
58,371.9
Table 4.4 (continued)
S. Ouda et al.