Updated: 16 May 2023
Next update: 14 May 2024
About the statistics
The statistics present annual statistics covering total area, production yields per area unit and total production for important horticultural crops.
Agricultural holding: A single unit, both technically and economically, which has single management and which produces agricultural products.
Area of vegetables: If a specific crop is harvested more than once on the same area during the same growth season, the area is counted only once. If the same area is used for various succeeding crops, the area will be counted for each crop. Consequently, the total area will be greater than the basic area used for production of vegetables, e.g. the area recorded in Structure of Agriculture.
Production: Defined as production that can be utilized for sale and home consumption.
A data file with anonymous individual data is stored at Statistics Norway.
The purpose of the statistics is to present annual statistics covering total area, production yields per area unit and total production for important horticultural crops.
Up to 2005 Statistics Norway worked out area and production statistics for horticultural crops. From 1996 to 2004 the Norwegian Agricultural Authority had the responsibility. From 2006 the statistics are again being worked out by Statistics Norway. Methods and procedures were changed when the Norwegian Agricultural Authority was in charge of the statistics. For 2005-2009 Statistics Norway has kept the same methodology as developed and used by the Norwegian Agricultural Authority.
The statistics are used by professional organizations, the Budget Committee for Agriculture, the Ministry of Agriculture and Food and various research institutions such as the Norwegian Agricultural Economics Research Institute.
Statistics Act § 10-1.
Cultivating minimum 300 m2 of vegetables grown in greenhouses, including herbs
Cultivating minimum 1,0 decare of field-grown vegetables, including herbs
Cultivating minimum 1,0 decare of fruit
Cultivating minimum 1,0 decare of garden berries
The Register of Applications for Agricultural Production Subsidies provides information about the holding, such as name and address of the holder and size of area of the various crop categories.
Detailed information about cultivated area and production of garden berries, fruits, field-grown vegetables and vegetables in greenhouses are compiled from the questionnaire.
Data on area and production of processing peas and beans are collected from the processing industry.
The sample is based on holdings growing field grown vegetables, vegetables under glass, fruit and berries.
The sample comprises approximately 2 000 agricultural holdings cultivating at least one of the crop categories mentioned above.
In January web-forms are sent to the agricultural holdings in the survey. The respondents must answer the questionnaire via Internet.
A number of controls and corrections are done to ensure consistency both on a single questionnaire and between questionnaires and available register information. If necessary, holdings are contacted for to clear up misconceptions in the questionnaire.
Production reported in other measuring units than specified on the questionnaire, are recalculated by using predetermined factors.
The data compiled are used to calculate total area, yield per unit of area and total production per crop and county for year of survey.
Figures are not presented if there is a risk of identifying any unit.
The statistics are basically comparable back to 1996.
Primary data obtained from questionnaires may contain errors. For instance it can be difficult for the holder to give precise figures for crops that can be sold in bunch or pieces, like radishes. A number of errors are discovered and corrected during the data revision at Statistics Norway. However some measurements and processing errors are unavoidable. Extensive work has been carried out to reduce these errors as much as possible.
Some of the crops are produced by a limited number of holdings. Non-response of holdings with great area will have significant impact on the estimated figures. Regular response-rate for preliminary figures is about 75 percent.
The quality of the register basis from which the population is selected also has an impact on the quality of the final result.