Effect of Farm Size on Energy Ratio for Wheat Production: A Case Study from Ardabil Province of Iran

The aim of this study was to examine direct and indirect input energy in per hectare in wheat production. The research also sought to analyse the effect of farm size. For this purpose, the data were collected from 300 wheat farmers by questionnaire method. The results indicated that wheat production consumed a total of 38.36 GJ ha of which fertilizer energy consumption was 38.45% followed by diesel and machinery energy. 1 Output-input energy ratio and energy productivity were found to be 3.13 and 0.16 kg of wheat MJ , 1 respectively. Large farms were more successful in energy use and energy ratio. It was concluded that energy use management at farm level could be improved to give more efficient and use of energy.