Energy efficiency for open-field grape production in Iran using Data Envelopment Analysis (DEA) approach
Journal Title: International Journal of Farming and Allied Sciences - Year 2014, Vol 3, Issue 6
Abstract
In this study a non-parametric method of data envelopment analysis (DEA) was applied to evaluate the energy efficiencies of open-field grape producer in east-Azerbaijan of Iran. The DEA method was done based on eight energy inputs including human labour, machinery, diesel fuel, electricity, chemical fertilizers, farmyard manure, chemicals, water for irrigation, and with the single output of grape yield. Data were collected through face to face survey from 70 grape orchards in 6 towns in East-Azerbaijan province. Total energy input and output for open-field grape production were calculated as 82193.24MJ and 195763.41 , respectively in this study. The results show, the average of technical, pure technical and scale efficiency scores were 0.768, 0.903 and 0.850, respectively. Total optimum energy for grape production calculated as 60375.45 , showing the 26.53% of input energies could be saved if the farmers follow the results recommended by this study. Also, electrical (34.72%), chemical fertilizers (28.46%) and diesel fuel (23.88%) had highest contribution from total saving energy.
Authors and Affiliations
Saeid Sattari-Yuzbashkandi, Sadegh Khalilian and Seyed Abolghasem Mortazavi
Keywords
Related Articles
- EP ID EP32608
- DOI -
- Views 291
- Downloads 0
Effect of Olive Leaf Extract on Growth and Viability of Lactobacillus acidophilus and Bifidobacterium bifidum for Production of Probiotic Milk and Yoghurt
The present study was designed to investigate the effect of olive leaf extract on Growth and viability of Lactobacillus acidophilus and Bifidobacterium bifidum in milk and yoghurt during 21 days refrigerated storage. I...
Comparison of phenolic-compounds, antioxidant activity and microbial quality of two varieties of fresh and frozen date-palm fruit during 8 months storage in freezer
Date-palm fruit is an important horticultural fruit in Iran with a high nutritive value. In this research the effects of freezing process on phenolic-compounds content, antioxidant properties and microbial quality of t...
Micropropagation of Phalaenopsis amabilis cv. Cool 'Breeze' with using of flower stalk nodes and leaves of sterile obtained from node cultures
In this study we tried to produce this flower by micropropagation method with use of flower stalk nodes and leaves of sterile which are obtained from node cultures as explant. We examined different experiments such as...
Investigation of physiological responses of wheat under salt stress
Salinity is a major problem which negatively affects a multitude of metabolic processes of plants resulting in reduced growth and yield of most crops. In this investigation the physiological parameters on wheat under s...
Screening of antagonistic activity in different Streptomyces species against Paecilomyces variotii and verification of some of the physiological properties of the antagonists
Paecilomyces variotii is a filamentous fungus which inhabits in soil, water, and functioning as biodegrading agent. In this study, biological control of Paecilomyces variotii was evaluated by two Streptomyces isolates....