This study is an evaluation of growth-promoting effects of methyl and ethyl alcohol on Korean radish and cabbage in the soil. In an experiment as College of Education, Seoul National University, Silt loams, which are treated seven times with methyl and ethyl alcohol at rates from 0.5cc. to 2.5cc. per pot, definitely increase growth rate of radish and cabbage seedlings originating from sterilized seeds. A strong, stimulating effect on the growth of radish and cabbage seedlings is produced when a rate of 0.5cc. per pot of alcohol is applied to pot soils. The effect of methyl alcohol is stronger in fresh weight, dry weight, and average height of radish and cabbage than that of ethyl alcohol.