Definition: Area of a survey unit (Combination of successive and combined cropping)
Main area: If the parcel of arable land is used more than once during a given crop year and with a combination of successive and combined crops, then each combination of crops occupying the land during the same period of time is valued separately, and the combination or the single crop with the highest value is taken as the main area. Where that area is used for combined cropping, the main area is split pro rata between the crops concerned.
Secondary area: All other occupations are then regarded as secondary areas.
European Union, Council Regulation (EEC) No 959/93 of 5 April 1993 concerning statistical information to be supplied by Member States on crop products other than cereals (Official Journal of the European Communities No L 098, 24/04/1993, p. 1), Annex I