Potential of Jatropha Curcas Derived Biodiesel for Rice Farmers

Name: Narumon Ladawan Na Ayudhaya

keyword: rice community

Abstract: This study aims to investigate Jatropha cultivation areas to support rice community scale production of biodiesel. The 2 parts of the methodology of this study are questionnaire survey to investigate the use of diesel by rice farmers and the potential of these farmers to cultivate Jatropha curcas for biodiesel produce, and estimate the rice farmer's capacity to supply Jatropha curcas for biodiesel production. 40 samples from 20 provinces in Thailand found that rice communities are in irrigation zones. There are 2 times of rice cultivation per year. The first crop is rain fed and the second crop is irrigation fed. Classifying by rice cultivation area, there are 3 groups: small size, average area is 2,654.55 rai; medium size, average area is 4,636.13 rai; and large size, average area is 7,753.85 rai. The average yield in the second crop is more than the first crop about 40%. The 4 steps of the rice farming process that consumes diesel are: tillage, water management, transportation, and harvesting. The second crop consumed diesel 24.70% more than the first crop because of (1) water management, mostly used for the second crop; (2) transportation: high yield in the second crop, and (3) harvesting: same as the transportation. Direct consumption in tillage, water management, and transportation used about 9.01-9.48 liter/rai/year, and indirect consumption in harvesting used about 9.49-10.35 liter/railyear. The demand for biodiesel consumption in this case focused only on direct diesel consumption, because the activities of indirect consumption were by outsourcing investors. Direct diesel consumption is 25,045.57 liter/community/year, 41,814.34 liter/community/year, and 73,276.21 liter/community/year for S, M and L groups respectively. Converted to demand of biodiesel consumption are 27,794.47 liter/community/year, 46,403.72 liter/community/year, and 81,318.73 liter/community/year for S, MandL groups respectively. The average requirement number of Jatropha for planting based on nonplantation model to meet the demand are 54,021-99,849 trees/community, 90,060-160,118 trees/community, and 163,634-349,394 trees/community for S, M and L groups respectively. 3 types of available areas for Jatropha planting in the communities are abandoned land, rice field boundary, and rice plot boundary. Total of available areas are 17-43 rai and 174.8-294.02 km for S group, 14-55 rai and 242-743.26 km for M group, and 15-18 rai and 396.64-758.87 km for L group. For sufficient substitute demand ofbiodiesel, each community should plant Jatropha in available areas with raw spacings of 3 meter/tree. Areas of abandoned land and rice field boundary are used absolutely, and some part of rice plot boundary about 69.73%, 68.30%, and 93.41% in S, M and L groups respectively.

King Mongkut's University of Technology Thonburi. KMUTT Library.

Address: BANGKOK

Email: info.lib@mail.kmutt.ac.th

Name: Savitri Garivait

Role: Advisor

Created: 2009

Modified: 2553-10-27

Issued: 2010-10-23

วิทยานิพนธ์/Thesis

application/pdf

CallNumber: JGSEE219

eng

DegreeName: Master of Engineering

Level: Master's Degree

Descipline: Environmental Technology

Grantor: King Mongkut's University of Technology Thonburi

©copyrights King Mongkut's University of Technology Thonburi

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