• Data reference period
• Geographic localization (Agrarian region)

• AGRICULTURAL HOLDING:  Technical-economic unit that uses common production factors such as labour, machinery, facilities, land, among others, fulfilling the following four conditions: 1) yield agricultural products or maintain, in good agricultural and environmental conditions, the lands that are no longer used for productive purposes; 2) reach or exceed a certain size (in area or number of animals); 3) be subject to a single management; 4) be located in a well-defined and identifiable area.
• REFERENCE PERIOD:  Period to which the information refers and which may be a specific day or a time interval (month, fiscal year, calendar year, among others).
• SUCCESSIVE TEMPORARY CROPS:  Crops that are grown successively on the same field and in the same agricultural year. One of them is considered the main crop and the others secondary crops.
• ARABLE LAND:  Land cultivated for plant production, fallow land, or land kept in good agricultural and environmental condition pursuant to Article 5 of EC Regulation no. 1782/2003, and land occupied by greenhouses or covered by fixed or mobile structures.

(Area of successive temporary crops/ Area of arable land)*100