In general, large numbers of observations improve reliability. You must interpret these results, therefore, with these limitations in mind. If you are interested in a rate quotation for a specific operation in an area which shows a small number of reports, you should consider other areas of the state where the operation is more common and adjust your interpretation for field size and soil type. Reporting Regions Rates are summarized by areas for the State of Oklahoma as shown in the map above. Soils are heavy.
Slopes are steep.
Machines are scarce. Custom operators are not available. Rates tend to be lower than expected when exchange work is common between relatives and neighbors. Custom Service vs. Ownership Individual circumstances cash flow, ownership and operating costs, labor availability, reliability and timeliness of custom operators, pride of ownership will influence an individual s decision on whether to buy or lease machinery and equipment or custom hire work done. Possible Advantages of Using Custom Operations Ownership costs are avoided.