This study goes to identify factors that affect farmers' WTP and estimating the TEV. The Bivarite Probit model is used for the estimation of the parameters using 185 sample size. The mean WTP from DBDCV is 28.48 ETH Birr per annum; is higher than the open ended CVM (i.e., 24.8 Birr). The TEV is estimated to be 105,148.16 ETH Birr. Education, fertiliser expenditure ...