Agriculture Reference
In-Depth Information
Table 14.4.
Variable production costs and yield of the tomato crop in an unheated low-cost greenhouse
in Almeria. (Source: Calatrava-Requena
et al
., 2001 and personal communication.)
Tomato
a
Cherry-type tomato
b
Percentage of total
variable costs
Percentage of total
variable costs
Variable cost
Cost (
€
kg
−1
)
Cost (
€
kg
−1
)
Fertilizers
0.035
23.3
0.056
12.5
Pesticides
0.013
8.7
0.025
5.6
Seedlings/seeds
0.012
8.0
0.055
12.2
Water
0.011
7.3
0.015
3.3
Salaries
0.070
46.7
0.275
61.1
Others
0.009
6.0
0.024
5.3
Total
0.150
100.0
0.450
100.0
Yield (kg m
−2
)
13.57
6.93
a
Tomato data: seasons 1996-1997 and 1997-1998 from 16 tomato farms.
b
Cherry-type tomato data: growing season 2000-2001 from12 cherry-type tomato farms.
Table 14.5.
Variable production costs and yield of melon and watermelon crops in an unheated low-cost
greenhouse in Almeria. (Source: J. Calatrava-Requena, unpublished data.)
Melon
a
Watermelon
b
Percentage of total
variable costs
Percentage of total
variable costs
Variable cost
Cost (
€
kg
−1
)
Cost (
€
kg
−1
)
Fertilizers
0.062
27.7
0.024
17.8
Pesticides
0.045
20.1
0.020
14.8
Seedlings/seeds
0.039
17.4
0.026
19.3
Water
0.011
4.9
0.008
5.9
Salaries
0.043
19.2
0.029
21.5
Others
0.024
10.7
0.028
20.7
Total
0.224
100.0
0.135
100.0
Yield (kg m
−2
)
3.57
5.76
a
Melon data: growing season 2000-2001 from 12 melon farms.
b
Watermelon data: growing season 2000-2001 from 20 watermelon farms.
Table 14.6.
Variable production costs and yield of pepper and green bean crops in an unheated low-cost
greenhouse in Almeria. (Source: J. Calatrava-Requena, unpublished data.)
Pepper
a
Green bean
b
Percentage of total
variable costs
Percentage of total
variable costs
Variable cost
Cost (
€
kg
−1
)
Cost (
€
kg
−1
)
Fertilizers
0.039
12.2
0.058
8.3
Pesticides
0.047
14.7
0.057
8.1
Seedlings/seeds
0.056
17.5
0.012
1.7
Water
0.012
3.8
0.011
1.6
Salaries
0.150
46.8
0.548
78.3
Others
0.016
5.0
0.014
2.0
Total
0.320
100.0
0.700
100.0
Yield (kg m
−2
)
5.8
2.18
a
Pepper data: growing season 2000-2001 from 20 pepper farms, of which 13 were of the thick-wall type and the rest of
thin-wall type.
b
Green bean data: growing season 2000-2001 from 13 green bean farms.
