Land fragmentation effects on technical efficiency of cassava farmers in South-West geopolitical zone, Nigeria

Figures & data

Table 1. Socioeconomic characteristic of the cassava farmers

Age	Frequency	Percentage
20–30	44	9.5
31–40	166	35.9
41–50	185	40.0
51–60	53	11.5
Greater than 60	14	3.0
Total	462	100.0
Mean = 42.7, standard deviation = 8.8
Min = 20, max = 76
Sex
Male	320	69.3
Female	142	30.7
Total	462	100.0
Marital status
Married	378	81.8
Otherwise		18.2
Total	462	100.0
Household size
1–4	106	23.0
5–8	256	55.4
Greater than 8	100	21.6
Total	462	100.0
Mean = 7.7, standard deviation = 1.8
Min = 1, max = 12
Educational level
No formal	30	6.5
Primary	70	15.2
Secondary	127	27.5
Tertiary	235	50.8
Total	462	100.0
Mean = 13.1, standard deviation = 1.2
Min = 0, max = 19
Household size (members)
1–4	106	22.9
5–8	256	55.4
> 8	100	21.7
Total	462	100.0
Mean = 7.1, standard deviation = 3.2
Min = 1, max = 19

Table 2. Number of plots owned and mean land size by cassava farmers in study area

Number of plots (parcels)	Frequency	Percentage	Average plot size (hectares)
1	96	20.8	0.58
2	178	38.5	0.90
3	121	26.2	1.29
4	51	11.0	1.81
5	61	3.5	2.41
Total	462	100.0	Mean = 1.09 ± 0.49

Table 3. Result of stochastic frontier model of cassava farmers in the study area

Variable		Coefficient	Standard error	T-value
Constant	β0	4.5278***	0.22673	19.96
Quantity of labour (Mandays)	β2	−0.01327***	0.003959	−2.99
Land size (Ha)	β3	−0.01183928*	0.010051	−1.83
Quantity of planting material (kg)	β4	−0.783855***	0.280894	−2.79
Quantity of fertilizer used (kg)	β4	0.0004089	0.008709	0.05
Quantity of herbicide used (Litre)	β5	0.010099	0.008662	1.17
Cost of farm implement used(Hoe, Cutlasses)	β6	0.0662458	0.0428042	1.54
Inefficiency
Constant	Z0	0.1376274	0.243368	0.56
Age (years)	Z1	−0.0011614	0.001171	−0.68
Sex	Z2	0.040875	0.034711	1.18
Marital status	Z3	0.0031185	0.035340	0.88
Household size	Z4	0.00391	0.002925	1.34
Years spent in school	Z5	0.0006835	0.001993	0.34
Fragmentation index	Z6	0.1490265***	0.060665	2.46
Farm distance to homestead (km)	Z7	0.010809**	0.004872	2.22
Sigma-squared(σ^2)		0.1391412***	0.4174042E+01	3.33
Gamma (γ)		0.99999	0.11558621E-03
Log-likelihood function	0.54256121E+02
LR-test of one-sided error	0.17580149E+03
Mean efficiency	0.818

* 10% significant.

** 5% significant.

*** 1% significant.

Table 4. The average technical efficiency score for the sample cassava farmers

Technical efficiency range	Frequency	Percent
0.61–0.70	1	0.2
0.71–0.80	161	34.8
0.81–0.90	290	62.8
0.91–1.00	10	2.2
Total	462	100
Min	61.1
Max	91.6