Study of Factors Affecting Economic Sustainability in Production of Greenhouse Products in Tehran Province

The purpose of this study is the determining factors affecting economical sustainability in production of greenhouse products in Tehran province. The used research method is descriptive and correlation kind, which has been carried out in a survey way. The studied statistic population was 1787 people of greenhouse owners in Tehran province in 2011 and data were collected by interview and completing 306 questionnaires. The results of SEM and factor analysis indicated that the most important factors affecting the economical sustainability, respectively consist of: economic factors specially promoting export, social factors specially establishing local organization, farming factors specially reduction the use of chemical input, extension/education factors specially visit the sample farms, and policy making factors specially establishing production infrastructure.