Floria mohammadi - Assistant Professor of Department of Agricultural Extension and Education, Nahavand University, Iran

The perception of farmer about the barriers to adoption organic farming in Tehran Province discussed in this article. The methodology used in this study involved a combination of descriptive and quantitative research and included the use of ordinal factor analysis, correlation, regression and descriptive analysis as data processing methods. The target population for this study consisted farmer in the Province of Tehran (N=5632). By multi-stage cluster sampling technique, 360 respondents were selected. Data were collected through interview schedules. The regression analysis showed that the economic-marketing and institutional-regulatory barriers determined 31% of variance on the perception of respondents regarding the organic farming. The results demonstrated that economic-marketing barriers are the most important factors affecting theadoption organic farming. Successful adoption of organic farming byfarmer in Iran will depend on solving economic-marketing, institutional-regulatory, cognitiveknowledge and farming-productive barriers

Organic farming, Barriers of adoption, Tehran