Effect of energy inputs on yield and economical analysis of cotton production in Khorasan Razavi province
Abstract:
Background And Objectives
The sustainable production of cotton (Gossypium hirsutum L.) in Khorasan Razavi province of Iran requires the consideration of energy and economic analysis in the production. Therefore, the aims of this study were to investigate the energy flow and economical analysis of cotton production in Khorasan Razavi province.
Materials And Methods
Data were collected through questionnaires and also interviews with cotton producers during 2012-2013. Each farmer was asked to detail the activities in cotton production as inputs that recorded as seed used (kg), human labor (hr), machinery use (hr), diesel fuel (lit), chemical fertilizer (kg) biocides (kg), farmyard manure (kg) and electricity (kWh), and as the output yield (kg). The energy associated with each input was estimated by multiplying the activity data for each farm by a characterization factor. The Cobbe-Douglas model was then used to find the relationship between energy inputs and yield for the region using data compiled from all the farms.
Results
The results revealed that the net energy and energy efficiency of cotton production in the region were 18683.78 MJha-1 and 0.71, respectively. Electricity and chemical fertilizer inputs were 70.50 and 12.39 percent respectively, as highest energy inputs consumed in the cotton production. The renewable energy and non-renewable energy of cotton production were calculated as 5896.64 and 63299.11 MJha-1, respectively. The Cobb-Douglas model results showed that the effects of inputs including seed, human labor, machinery and diesel fuel were positive on the yield while the effect of inputs including chemical fertilizers, biocide, and farmyard manure and electricity on cotton yield were negative. The net return and benefit-cost ratio were calculated as 9039451 Rial ha-1 and 1.21, respectively. Labor inputs were 42.9, as highest variable costs consumed in the cotton production.
Conclusion
The energy use efficiency and benefit to cost ratio for cotton production were relatively low. The reason of relatively low energy use efficiency of cotton production was related to high consumption of water for irrigation and its electricity consumption.
Language:
Persian
Published:
Electronic Journal of Crop Production, Volume:10 Issue: 1, 2017
Pages:
149 to 120
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