Agriculture Reference
In-Depth Information
Table 1.
Major characteristics of the farming systems in the research clusters
Matuu
Kasikeu
Kibwezi
Kionyweni
Kiomo
Enchorica
Farm households
selected (no.)
28
19
17
26
13
8
rainfed +
irrigated
farming
local cattle,
maize,
beans,
sorghum
rainfed
farming
cross-bred
cattle,
maize,
beans, fruit
trees
rainfed
farming
maize,
pigeon pea,
beans,
cowpea
rainfed +
irrigated
farming,
pigeon pea,
cowpea,
sorghum
rainfed
farming
maize, beans,
sorghum,
millet,
pigeon pea
Farming system
characterization
rainfed
farming free
ranging
cattle, maize,
beans
Average annual
rainfall (mm)
600
700
560
600
600
500
Population density
High
High
High
High
Low
Low
Soils
Alfisols
Acrisols
Alfisols
Acrisols
Vertisols
Alfisols
Ferralsols
Alfisols
Alfisols
Average area
per farm (ha)
1.5
2.8
3.5
2.3
6.7
51.6
Cultivated area
per farm (ha)
1.3
1.6
1.7
1.7
3.4
1.0
Livestock
per farm (TLU
1
)
6.1
5.2
0.8
6.2
6.8
28.4
Distance to
market (km)
8.4
1.2
1.5
5.4
3.5
35.6
Female-headed
households (%)
0
16
6
19
15
13
1
TLU is a Tropical Livestock Unit, a hypothetical animal of 250 kg live weight, used to
bring different animal types under the same denominator.
Table 2.
Average farm level soil nutrient stocks (topsoil 30 cm) and flows in the research clusters
in the period 2000-2001
Matuu
Kasikeu
Kibwezi
Kionyweni
Kiomo
Enchorica
N-stock (kg ha
-1
)
Net N-flow (kg ha
-1
yr
-1
)
N-flow (% stock yr
-1
)
3016
-14
-0.5
6857
-15
-0.2
4077
-7
-0.2
1828
-1
-0.1
3596
-4
-0.1
2770
-8
-0.3
P-stock (kg ha
-1
)
Net P-flow (kg ha
-1
yr
-1
)
P-flow (% stock yr
-1
)
3825
-1
0.0
449
2
+0.4
1797
0
0.0
7211
-4
-0.1
1403
0
0.0
5865
-2
0.0
K-stock (kg ha
-1
)
Net K-flow (kg ha
-1
yr
-1
)
K-flow (% stock yr
-1
)
6931
-14
-0.2
6115
0
0.0
11866
-4
0.0
15563
-1
0.0
9151
-1
0.0
15709
-3
0.0
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