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Proposing an Appropriate Soil Water Content Estimation Technique for Iran CIGR Journal
Karimi, Hadi; Ghassemzadeh, Hamid Reza; Pashaee, Payam; Zarei Shahamat, Ebrahim.
Limitation of water resources is one of the major factors in the agricultural development of Iran. In recent years. Iran suffers from increases water consumption and drought conditions, This is why efficient water management in agriculture production becomes an inevitable requirement. One of the main aspects of water management in agriculture production is operating any type of irrigation system efficiently. A good on-farm irrigation water management requires a routine monitoring of soil water content (SWC). Recently a substantial number of different experimental methods in categories of direct, indirect, ground based and remote sensing have been developed to determine the SWC, and a large body of knowledge is now available on theory and applications. The...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Iran; Water management; Soil water content; Water estimation technique.
Ano: 2015 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3054
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Application of nonparametric method to improve energy productivity and CO2 emission for barley production in Iran CIGR Journal
Ghasemi Mobtaker, Hassan; Taki, Morteza; Salehi, Marzie; Zarei Shahamat, Ebrahim.
The nonparametric method of data envelopment analysis (DEA) was used to investigate the energy efficiency and CO2 emission of barley farm in Hamedan province of Iran.  The method was used based on eight energy inputs including human labor, machinery, diesel fuel, fertilizers, farmyard manure, biocide, electricity and seed energy and single output of barley yield and technical, pure technical, scale and cross efficiencies were calculated using CCR and BCC models.  The results showed that the average values of technical, pure technical and scale efficiency scores of farmers were 0.788, 0.941 and 0.833, respectively.  Also, energy saving target ratio for barley production was calculated as 11.45%, indicating that by following the recommendations of this...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Data envelopment analysis; Energy saving; Barley; Chemical fertilizers.
Ano: 2013 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2618
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