Agriculture Reference
In-Depth Information
Table 4.5: Comparison between recorded crop yields at Vea and Tono
irrigation schemes and the potential yields (FAO) for semi-arid and arid
regions.
Crop
Average crop
yields (t/ha)
Good yields of high-
producing varieties
adapted for semi-arid
and arid regions by
FAO (1979) (t/ha)
Percentage of FAO
good yield
achieved
(lower limit) (%)
Wet Season
Vea
Tono
Good yield
Vea
Tono
Rice
4.0
3.3
6-8
75
55
Groundnut
0.71
0.72
3-4
24
24
Maize
1.23
1.01
6-8
21
17
Cowpea
0.48
0.54
2.5 - 3.8
20
22
Soybean
0.85
1.1
2.5-3.5
34
44
Millet/Sorghum
0.6
0.67
3.5-5
18
19
Dry Season
Rice
4.8
3.9
6-8
80
65
Tomatoes
11.5
9.1
45-65
26
21
Pepper
0.5
0.3
15-20
4
2
Onion
6.1
7.3
35-45
18
21
Source: ICOUR.
Table 4.5 compares the average crops' yields and their potential yields for
both dry and wet season production and shows that rice is the only crop
which has performed well in terms of yield. The yields achieved for all other
crops are less than 50% of potential.
Figure 4.9: Total crop production; a) Vea scheme b) Tono scheme
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