Papadopoulos et al [11] evaluated the investment in hydroponic systems of summer crops and green house of vegetables and also ornamental plants in the west of Macedonia. Results showed that, with regard to early investment, this investment could be economical only with receiving subvention. Based on the result, the total net expenditures for early investment and annually variable investments for soil-based plantation system and hydroponic system during the programming horizon were 40100 and 133800 Rials per square meter, respectively. It is 3.33 times costlier than soil-based method. Considering the costly investment in hydroponic system, the soil-based plantation is economically justified. We should notice that agriculture land of this province are relatively appropriate and are free of salt or any other problems. In situations which the green house land is free of soil or poor, and also when the regions are very salty or polluted, we should manage to supply soil and prepare it based on the soil-based method. In this manner, the results of this study are not recommended for such conditions. Furthermore, because some of the expenditures in hydroponic system could be prorated into broader areas, the expenditures could possibly reduce per a square meter.