Research Article
Economic Impact of Harvesting Corn Stover under Time Constraint: The Case of North Dakota
Table 3
Estimated corn grain and cob harvest cost using cob caddy harvest method.
| Variable | Corn combine | Cob harvester |
| Horse power (hp) | 275.00 | 115.00 | Corn head width (ft) | 20.00 | ā | Life (year) | 12.00 | 10.00 | Annual hours of use | 300.00 | 300.00 | Fuel consumption (gal/hr) | 12.10 | 2.50 | Speed (mph) | 2.00 | 2.00 | Field efficiency (%) | 0.70 | 0.70 | Capacity (acre/hr) | 3.39 | 3.39 | Fuel price ($/gal) | $2.60 | $2.60 | List price ($) | $334,795.32 | $120,000.00 | Fixed cost ($/hr) | $104.02 | $40.24 | Repair cost ($/hr) | $37.20 | $18.00 | Fuel cost ($/hr) | $31.46 | $6.50 | Lubrication cost ($/hr) | $4.72 | $0.98 | Labor cost ($/hr) | $17.50 | ā | Variable cost ($/hr) | $90.88 | $25.48 |
| Total cost ($/hr) | $194.90 | $65.72 | Total cost ($/acre) | $57.43 | $19.36 |
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