EVALUATION AND COMPARISON OF ENERGY INDICES WITHIN WHEAT FARMS IN TOWNSHIPS OF ALBORZ PROVINCE

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MANAFI DASTJERDI MUHAMMAD; LARI AMIR

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Journal: Iranian Journal of Biosystems Engineering Year:2017 | Volume:47 | Issue:4 Page(s): 771-779

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Title

EVALUATION AND COMPARISON OF ENERGY INDICES WITHIN WHEAT FARMS IN TOWNSHIPS OF ALBORZ PROVINCE

Author(s)

MANAFI DASTJERDI MUHAMMAD | LARI AMIR | Issue Writer Certificate

Keywords

ENERGY RATIOQ1

NET ENERGY GAINQ2

ENERGY PRODUCTIVITYQ2

SPECIFIC ENERGYQ2

ENERGY INTENSITYQ1

Abstract

The present research was undertaken to evaluate and compare energy flows within wheat farms in townships of Alborz Province, Iran. The indices of ENERGY RATIO, NET ENERGY GAIN (NEG), SPECIFIC ENERGY, ENERGY PRODUCTIVITY (EP), ENERGY INTENSITY, and total input vs. output energies were assessed. The statistical population included all the farmers engaged in wheat farming in townships of Alborz Province, Iran, during 2012/13 crop year. Based upon the size of population and Morgan Table, the studied sample such selected as to include 273 farmers working in the agricultural sector of Alborz Province, Iran. A researcher-developed questionnaire (with a reliability coefficient of 0.91) along with a set of data from Agricultural Jihad Organization constituted the base for data collection. The results indicated that, among the input energy sources for wheat cultivation in the four townships studied, chemical fertilizers (28,176 MJ/ha) and fuel (22,154 MJ/ha) were associated with the highest energy consuming factors, while human force (85 MJ/ha) took the lowest level of energy. Throughout the research, ENERGY RATIO was obtained at farms within Nazarabad (2.74), Karaj (2.57), Eshtehard (2.23), and Savojbolagh (2.5). The highest and lowest EPs were found to be those of Nazarabad and Eshtehrad Townships (0.086 kg/MJ and 0.070 kg/MJ, respectively). Among the four townships studied, Nazarabad benefitted from better conditions, in terms of NEG (90,802.42 MJ/ha), ENERGY INTENSITY (5.21 MJ/m2), and SPECIFIC ENERGY (11.57 MJ/kg), as compared with the other three townships. In total, results of the research indicated that the farms at Nazarabad exhibit more efficient energy consumption, indicating them as being more properly managed.

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APA: Copy

MANAFI DASTJERDI, MUHAMMAD, & LARI, AMIR. (2017). EVALUATION AND COMPARISON OF ENERGY INDICES WITHIN WHEAT FARMS IN TOWNSHIPS OF ALBORZ PROVINCE. IRANIAN JOURNAL OF BIOSYSTEMS ENGINEERING (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 47(4), 771-779. SID. https://sid.ir/paper/144378/en

Vancouver: Copy

MANAFI DASTJERDI MUHAMMAD, LARI AMIR. EVALUATION AND COMPARISON OF ENERGY INDICES WITHIN WHEAT FARMS IN TOWNSHIPS OF ALBORZ PROVINCE. IRANIAN JOURNAL OF BIOSYSTEMS ENGINEERING (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2017;47(4):771-779. Available from: https://sid.ir/paper/144378/en

IEEE: Copy

MUHAMMAD MANAFI DASTJERDI, and AMIR LARI, “EVALUATION AND COMPARISON OF ENERGY INDICES WITHIN WHEAT FARMS IN TOWNSHIPS OF ALBORZ PROVINCE,” IRANIAN JOURNAL OF BIOSYSTEMS ENGINEERING (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 47, no. 4, pp. 771–779, 2017, [Online]. Available: https://sid.ir/paper/144378/en

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