نوع مقاله : Original Articles
نویسندگان
1 دانش آموخته کارشناسی ارشد کشاورزی اکولوژیک، داﻧﺸﮕﺎه ﺷﻬﯿﺪ ﺑﻬﺸتی
2 دانشیار گروه کشاورزی اکولوژیک، پژوهشکده علوم محیطی، داﻧﺸﮕﺎه ﺷﻬﯿﺪ ﺑﻬﺸتی
3 دانشجوی دکترای آگرواکولوژی، دانشگاه زابل
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The aim of this study was to examine the energy equivalents of input and output in greenhouse cucumber production in Varamin County of Tehran Province, Iran. A survey methodology with a sample of 200 greenhouse farms was employed in 2010. The results showed that the output–input ratio, specific energy and energy productivity were 0.017, 46.84MJ/kg and 0.02 kg/MJ, respectively. In this sense, diesel (99.03%), human labour (0.37%) and fertilizer (0.34%), had the highest proportion of energy consumption. Based on the results obtained, twostrategies including input substitution and using technical progress were recommended for the best energy efficiency.
کلیدواژهها [English]