Selection of The Best Structure For Cultivating Peppers In Greenhouse By Data Envelopment Analysis

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Naderi s.a.; Lotfalian Dehkordi A.; TAKI M.

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Journal: JOURNAL OF RESEARCHES IN MECHANICS OF AGRICULTURAL MACHINERY Year:2020 | Volume:8 | Issue:2 (15) Page(s): 53-62

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Title

Selection of The Best Structure For Cultivating Peppers In Greenhouse By Data Envelopment Analysis

Author(s)

Naderi s.a. | Lotfalian Dehkordi A. | TAKI M. | Issue Writer Certificate

Keywords

Data Envelopment Analysis

Analysis of Variance

Structure

Green House

Pepper

Energy Efficienc

Abstract

Production of greenhouse products as a part of the production system is considered to be the most important energy consuming sector in agricultural sector. The present study investigates the energy consumption in sweet Pepper greenhouses in Tiran and Karvan county, Isfahan province, to determine the best type of greenhouse Structure suitable for the climatic conditions of the area. The required data were collected through a completely randomized questionnaire from 39 greenhouse units in three treatments with 13 replications, in the 20172018 crop year. The energy of machinery, fuel, chemical fertilizer, manure, poisons, labor force, water and electricity were considered as inputs and the yield of Pepper was considered as an output. In this study, the total amount of input and output energy was 22689491 MJ/ha and 94462 MJ/ha, respectively. The highest and lowest energy consumption was natural gas with 21532169 MJ/ha (94. 89%) and machinery with 1828 MJ/ha, respectively (0. 008%). Energy indices including energy ratio, Energy Efficiency, specific energy and net energy added were calculated as 0. 004, 0. 005 kg/MJ, 201. 7 MJ/kg and-22595029 MJ/ha, respectively. The share of direct, indirect, renewable and non-renewable energy was 22584024 (99. 5%), 105467 (0. 5%), 85216 (0. 4%) and 22604275 (99. 6%) MJ/ha was calculated. According to the results of Data Envelopment Analysis, the return to fixed-scale model and return to variable scale were 12 and 34 efficiency units respectively, 27 and 5 units respectively. The average total efficiency, net technical efficiency and scale efficiency were calculated to be 0. 88, 0. 997, and 0. 88. The results of statistical analysis of Levin's test showed that the variance of the Energy Efficiency of the Structures were equal. Also, according to the results of one-way ANOVA, there was no significant difference between the treatments.

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APA: Copy

Naderi, s.a., Lotfalian Dehkordi, A., & TAKI, M.. (2020). Selection of The Best Structure For Cultivating Peppers In Greenhouse By Data Envelopment Analysis. JOURNAL OF RESEARCHES IN MECHANICS OF AGRICULTURAL MACHINERY, 8(2 (15) ), 53-62. SID. https://sid.ir/paper/270409/en

Vancouver: Copy

Naderi s.a., Lotfalian Dehkordi A., TAKI M.. Selection of The Best Structure For Cultivating Peppers In Greenhouse By Data Envelopment Analysis. JOURNAL OF RESEARCHES IN MECHANICS OF AGRICULTURAL MACHINERY[Internet]. 2020;8(2 (15) ):53-62. Available from: https://sid.ir/paper/270409/en

IEEE: Copy

s.a. Naderi, A. Lotfalian Dehkordi, and M. TAKI, “Selection of The Best Structure For Cultivating Peppers In Greenhouse By Data Envelopment Analysis,” JOURNAL OF RESEARCHES IN MECHANICS OF AGRICULTURAL MACHINERY, vol. 8, no. 2 (15) , pp. 53–62, 2020, [Online]. Available: https://sid.ir/paper/270409/en

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