Authors : Abdullah Hassanzadeh-Gorttapeh , Nabi-Ollah Nemati , Farideh Faghenaby , Farshid Talat , Mehran Mojarrad , Reza Amirnia and Hojat Salhzadeh
Abstract: A way of estimation agriculture development and product stability agricultural location is using of energy flow method. In this consideration, energy flow at agricultural ecosystems of 2 grape in cities from west Azerbaijan province was compared. The related data of inputs and outputs for evaluation of energy efficiency in these gardens are become equivalent value of input and output energy efficiency. Energy value of used factors and input in grape gardens of Urmia and sardasht were 6417773 and 862570 k cal ha 1, respectively and output (production) energy value of the gardens were 25632600 and 10123800 k cal ha 1, respectively. Energy efficiency values (output: input ration) were 3.99 and 11.7, respectively. Data showed in grape gardens of Urmia the most use of energy were nitrogen fertilized usage and irrigation. In grape gardens of sardasht the most use of energy was nitrogen fertilized. In general, because of the climate conditions, topography and society culture in these regions the difference in energy efficiency of these gardens almost was reasonable. The number of inputs increases; effect increases any one of input decrease. Grape garden system of sardasht hasn�t any contamination and agricultural systems because of much annual rainfall in this region are dry farming. Therefor, costs of irrigation and poisoning are deleted but inordinately poisoning of Urmia gardens result in contamination and transformed these ecosystems.
Abdullah Hassanzadeh-Gorttapeh , Nabi-Ollah Nemati , Farideh Faghenaby , Farshid Talat , Mehran Mojarrad , Reza Amirnia and Hojat Salhzadeh , 2008. Evaluation of Economy and Compared Energy Efficiency on Grape in West Azerbaijan Province. Research Journal of Biological Sciences, 3: 1090-1093.