Pramot Kammueng creator Singh, Gajendra Chairperson Gee-Clough, D. Examination Committee Sauter-Servaes, Florian Examination Committee Jindal, Vinod Kumar Examination Committee UNDP/FAO Scholarship Donor text series technical report th Bangkok Asian Institute of Technology 1985 continuing eng 155 p. During 1984, 245 farmers from eight provinces in three regions (North, Northeast and Central Plain) of Thailand were interviewed to collect information on energy inputs in the production of five major crops, namely, rice, maize, sugarcane, cassava and cotton, and crop yields to compute energy output/input ratios. These Farmers were classified in three categories, namely animal, power tiller and tractor farmers. Energy from human, animal, and mechanical sources used in performing all field operations from and preparation to harvesting (including threshing) and material inputs as seeds, fertilizers and chemicals, were included in energy inputs. Energy output/input ratio for rice varied from 14.9 for tractor cultivated farms in Northeast to 3.9 for power tiller farms in the Central plain. Energy ration for maize for tractor farms in all three regions were almost the same varying from 7.7 to 8.3. For the Northern region for animal and power tiller farms these rations were 11.7 and 12.1 respectively. Most of the sugarcane farmers used tractors and energy ration varied from 3.5 to 4.7. All cotton farmers interviewed used tractors and energy ratio varied from 1.9 to 2.5. The energy rations were the highest for cassava farmers using tractors in the Central Plain (37.7) and power tiller farms in the Northern region (18.2). A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development Thesis (M.Eng.) - Asian Institute of Technology, 1985 Agriculture Thailand Energy consumption Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B19911 http://203.159.5.9/ait-thesis/detail.php?q=B19911 110910 20260818095742.0