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Journal of Researches in Mechanics of Agricultural Machinery
Investigation of energy efficiency and greenhouse gas emissions of safflower production in terms of environment


 submission: 25/09/2018 | acception: 24/04/2019 | publication: 08/10/2019

DOI 

Authors
Abdollah Imanmehr1

1-Arak University،imanmehr2000@yahoo.com



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Abstract

This study was carried out to evaluate the energy efficiency of safflower production units using data envelopment analysis technique in Jolgeh district of Isfahan province in ۲۰۱۶. Data were collected from a total of ۳۰ safflower farms using questionnaires and face to face interviews. The results showed that the input and output energy were ۳۰۸۴۳.۱ and ۶۷۷۵.۷۱ megajol/ha, respectively. The highest share of energy consumption was allocated to chemical fertilizers (۴۸.۱۸%), fuel (۲۴.۵۵%) and water (۱۲.۴۴%) respectively. The average technical efficiency, net technical efficiency and efficiency of Safflower product scale were ۹۴.۲۸%, ۹۹.۹۳% and ۹۴.۳۳%, respectively. According to the CCR model, the highest intakes of excessive intake units are related to the inputs of chemical fertilizers, especially urea (۵۸%), diesel fuel (۱۸%), water (۱۲%) and seed consumption (۸%). Fuels with ۴۹% and then urea fertilizer with ۳۵% have the largest share in the emissions of greenhouse gases in the production of safflower (Figure ۴-۱۶). Therefore, using managed mechanized systems, it is necessary to control the use of machinery to reduce fuel consumption and to reduce the consumption of urea crop by replacing livestock fertilizers in order to reduce the pollution caused by greenhouse gas emissions and pollution of the water resources of the area.This study was carried out to evaluate the energy efficiency of safflower production units using data envelopment analysis technique in Jolgeh district of Isfahan province in ۲۰۱۶. Data were collected from a total of ۳۰ safflower farms using questionnaires and face to face interviews. The results showed that the input and output energy were ۳۰۸۴۳.۱ and ۶۷۷۵.۷۱ megajol/ha, respectively. The highest share of energy consumption was allocated to chemical fertilizers (۴۸.۱۸%), fuel (۲۴.۵۵%) and water (۱۲.۴۴%) respectively. The average technical efficiency, net technical efficiency and efficiency of Safflower product scale were ۹۴.۲۸%, ۹۹.۹۳% and ۹۴.۳۳%, respectively. According to the CCR model, the highest intakes of excessive intake units are related to the inputs of chemical fertilizers, especially urea (۵۸%), diesel fuel (۱۸%), water (۱۲%) and seed consumption (۸%). Fuels with ۴۹% and then urea fertilizer with ۳۵% have the largest share in the emissions of greenhouse gases in the production of safflower (Figure ۴-۱۶). Therefore, using managed mechanized systems, it is necessary to control the use of machinery to reduce fuel consumption and to reduce the consumption of urea crop by replacing livestock fertilizers in order to reduce the pollution caused by greenhouse gas emissions and pollution of the water resources of the area.




Keywords

Energy Efficiency  Safflower Production  Energy Consumption Analysis  Greenhouse Gas Emissions 



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