Utilization of Organic Fertilizer in Ghana: Implications for Crop Performance and Commercialization

Table 7

Estimates of impact of the endogenous treatment effect model of the impact of OF on income.

Variables	Income		OF
	Coef.	Std. err.	Coef.	Std. err.
Farm size	194.671	75.303
Worth	−0.001	0.043	0.000	0.000
Chemical fertilizer	−0.309	0.680
Organic fertilizer	−0.286	0.583
Age			0.013	0.007
Extension serv.			0.009	0.047
OF FBO			0.368	0.195
OF affordability			0.134	0.202
1.OF (ATET)	409.601	58.961
Constant	−126.422	362.722	−0.906	0.368
/athrho	−1.507	0.213
/lnsigma	7.538	0.090
rho	−0.906	0.038
sigma	1878.522	168.854
lambda	−1702.565	204.570
Log likelihood	−921.188
Wald test χ^2 (5)	64.590
LR test of independent equations χ^2 (1) 18.22

Significant at 1% level of significance; significant at 5% significance level; significant at 10% significance level.