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Background Notes

Introduction   

This release presents final estimates of the area, yield and production of the main arable crops of the reference year at State level. The estimates for the area under crops shown in Table 1 have been obtained from the Department of Agriculture, Food and the Marine (DAFM) Basic Income Support for Sustainability Scheme (BISS) which replaced the Basic Payment Scheme (BPS).

The yield estimates are obtained from a joint survey conducted by Teagasc and the CSO.

Production refers to the total weight of each crop produced over the year.

Methodology   

The yield figures are given on a “green” (as harvested) basis. The winter wheat yield refers to feed wheat. Similarly, the spring barley yield refers to feed barley. The oilseed rape yield is a weighted average of the winter and spring yield.

The bean and pea yield is the weighted average of pea and bean yield.

The potato yield is the weighted average of early potato crop yield, main potato crop yield and seed potato crop yield.

The State production figure is generally calculated by multiplying the area figure by the average yield figure at a county level and then aggregating to the State level. The State yield figure is then calculated by dividing the State production by the State area, as per the BISS Payment areas from DAFM.

As a result of rounding there may be slight discrepancies between the sum (or difference) of the constituent items and the total shown. Percentage changes have been calculated on actual figures.