planning and scheduling barley production mechanization project using the pert network: case study alborz province

agricultural mechanization project must be identified in a short time frame to do a certain way; otherwise, cost is not the time to come and will also result in reduced yield. to avoid these costs in farming systems is necessary in any region that agricultural mechanization projects are and scheduling and planning as well as scientific until activities included in the project to fruition are done in the correct order and at the right time. nature of agricultural projects - with its perform certain activities in a series of times - the closer pert network is a network technology so pert networks were used for planning and scheduling production mechanization barley at alborz province. barley for mechanized production data required by researchers from the fields of observation and questionnaire were collected by farmers. project work break down structure diagram has been determined and it was drawn. pert networks in the project were drawn and analyzed. the shortest time possible mechanized barley production is 228.20 days. likely to reach 99% of the product mechanized barley project completed in less than 240 days. with likely 95%, product barley project lasts 231.45 days.