Energy requirements for selected crop production implements |
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| Authors: | Lowrey A Smith |
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| Institution: | USDA-ARS Field Crops Mechanization, PO Box 36, Stoneville, MS 38776, USA |
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| Abstract: | Specific energy requirements of eight implements were evaluated as crop production practices were performed. Tractor instrumentation which measured engine speed, ground speed, fuel consumption, and draft was used to collect data for up to nine combinations of gear selection and engine speed while other operating parameters were maintained as consistent as possible. The equipment was operated on Tunica clay (Vertic Haplaquept) and Dundee very fine sandy loam (Aeric Ochraqualfs). Results demonstrated the validity of the ‘shift-up throttle-back’ concept with potential fuel savings of 20–30%. Fuel consumption data revealed that 45–60% of the fuel consumed was required to propel the tractor. Average draft, drawbar power, and specific energy requirements were presented for performing crop production practices throughout the crop season. Draft from the disk bedders responded to ground speed similarly to the disk plow response given by ASAE Data D230.4. A general relationship between net fuel consumption and draft for all implements and for all operating conditions experienced during the study was demonstrated. |
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