04085nas|a2200385 a 4500 20260818095742.0 150401s2010 th uu m rtt 0| a1eng d .b12151324 AIT Thesis no.AE-10-02 Vatinee Mongkolluk Energy analysis of organic and inorganic rice production in Central Plain of Thailand : a case study of Suphanburi Province Pathum Thani, Thailand : Asian Institute of Technology, 2010 46 leaves : ill. Thesis ; no. AE-10-02 A thesis submitted in partial fulfillment of the requirement for the degree of Master of Science in Agricultural Systems and Engineering, School of Environment, Resources and Development Thesis (M. Sc.) - Asian Institute of Technology, 2010 The aim of this study was to examine the energy consumption in organic and inorganic rice production systems in Suphanburi province, in the Central plain of Thailand. Raw data were collected from 50 rice farmers by field survey and personal interviews using questionnaire. Results indicated that the energy input of the organic rice production was 42.84 percent lower than the inorganic rice production. The organic rice production required a total energy of 4,275.40 MJ/ha whereas, the inorganic rice production required a total energy of 10,685.31 MJ/ha. In the inorganic rice production, energy consumption of the fertilizer application was 4,561.26 MJ/ha or 42.69 percent- which was accounted as the highest among other energy requirements in the production, followed by the energy consumption of the machinery (2,793.77 MJ/ha or 26.15 percent), seed distribution (2,569.10 MJ/ha or 24.04 percent), pesticide and herbicide application (677.37 MJ/ha or 6.34 percent) and human labor (83.81 MJ/ha or 0.78 percent). On the other hand, in the organic rice production, the energy required to distribute seeds was 2,336.82 MJ/ha or 54.66 percent which was accounted as the highest, followed by energy required by the machinery (1,769.90 MJ/ha 41.40 percent), human labor (101.64 MJ/ha 2.38 percent) and fertilizer application (67.04 MJ/ha or 1.57 percent). The highest average operational energy consumption occurred in planting, followed by tillage, harvesting, spraying and fertilizing in the organic rice production whereas, in the inorganic production, the highest energy consumption occurred in fertilizing, followed by planting, tillage, spraying and harvesting. The calculated energy ratio (output energy to input energy) and energy productivity (yield to input energy, denoted by kg/MJ) were 17.77 and 3.26 kg/MJ for the organic rice production and 7.98 and 1.67 kg/MJ for the inorganic production, respectively. Therefore, it can be stated that the organic rice production would be more efficient in terms of energy usage and energy ratio. Moreover, the cost of production remained lower on the organic rice production than the inorganic rice production. Rice Energy consumption Thailand Suphanburi Soni, Peeyush, Chairperson Athapol Noomhorm, Examination Committee Roongruang Kalsirisilp Examination committee RTG Fellowship, Scholarship donor Asian Institute of Technology. Thesis ; no. AE-10-02 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B01739 .b12151324 mnait z 240404 0 150401 m a z 0 000:001:PDF:b1215132:002085:0:0:0:0:0:0 Abstract--AIT Thesis no. AE-10-02 n mnait mnait 20 Barcode : 30050120576045 CREATED : 2015-01-04 RECORD # : i12844743 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 2 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120576037 CREATED : 2015-01-04 RECORD # : i12844755 LPATRON : 1026032 LCHKIN : 2015-08-18 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 1 TOT RENEW : 0 37085 37085 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.AE-10-02 30050120576045 2026-08-18 09:57:42 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.AE-10-02 30050120576037 2026-08-18 09:57:42 2 2026-08-18 20