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/en/jord-skog-jakt-og-fiskeri/statistikker/jordbruksavling/aar
318050
statistikk
2018-02-12T08:00:00.000Z
Agriculture, forestry, hunting and fishing
en
jordbruksavling, Production of potatoes and forage plants, agricultural yield, forage, potatoes, hay, rye grass, silage, green fodderAgriculture , Agriculture, forestry, hunting and fishing
true

Production of potatoes and forage plants

Updated

Next update

Not yet determined

Key figures

314

thousand tonnes of potatoes harvested in 2017

Production of potatoes and forage plants. 1 000 tonnes
2017Per cent
2016 - 20172007 - 2017
Meadows for mowing converted into hay2 606.1-7.2-0.4
Crops for green fodder and silage183.24.2-25.6
Potato314.5-10.3-4.6

See more tables on this subject

Table 1 
Yield per decare of patoes and meadows for mowing, by county. Kilos

Yield per decare of patoes and meadows for mowing, by county. Kilos
PotatoMeadows for mowing converted into hay
20082 782625
20092 419620
20102 517558
20112 291587
20122 405635
20132 517558
20142 897648
20152 578708
20162 927666
20172 689621
 
2017
Østfold3 162604
Akershus and Oslo3 350747
Hedmark3 075650
Oppland2 624725
Buskerud2 894532
Vestfold2 207617
Telemark1 932504
Aust-Agder1 911534
Vest-Agder1 616635
Rogaland2 066730
Hordaland1 255604
Sogn og Fjordane2 162629
Møre og Romsdal3 052676
Sør-Trøndelag2 049631
Nord-Trøndelag2 503679
Nordland1 060473
Troms - Romsa1 623341
Finnmark - Finnmárku1 000297

Table 2 
Yield of potatoes and forage plants, by county. 1 000 tonnes

Yield of potatoes and forage plants, by county. 1 000 tonnes
PotatoCrops for green fodder and silageMeadows for mowing converted into hay
2008398.4221.92 718.3
2009332.5216.02 695.3
2010333.2198.72 392.7
2011295.5151.42 523.4
2012304.7170.82 712.8
2013318.0183.12 418.3
2014357.7186.52 824.6
2015305.2182.33 035.7
2016350.8175.82 808.0
2017314.5183.22 606.1
 
2017
Østfold15.45.653.4
Akershus and Oslo18.66.977.8
Hedmark145.522.7204.2
Oppland24.153.6378.2
Buskerud7.96.188.3
Vestfold31.84.239.4
Telemark3.83.953.4
Aust-Agder4.20.636.0
Vest-Agder1.91.068.1
Rogaland13.66.3305.5
Hordaland0.10.8119.2
Sogn og Fjordane1.92.1154.5
Møre og Romsdal5.86.3251.4
Sør-Trøndelag2.914.6240.6
Nord-Trøndelag30.831.9260.4
Nordland1.75.8191.4
Troms - Romsa4.67.063.7
Finnmark - Finnmárku0.13.920.8

Table 3 
Yield of potatoes and forage plants

Yield of potatoes and forage plants
Yield, tonnesKilos per decare
20142015201620172014201520162017
Meadows for mowing converted into hay2 824 6003 035 7002 808 0002 606 100648708666621
Crops for green fodder and silage186 500182 300175 800183 2001 6401 8301 9371 904
Annual rye-grass104 700108 000100 500104 9002 0612 2512 2482 528
Green forage mixtures/grain crops74 20063 10066 90069 3001 3521 4081 6451 475
Forage rape, marrow-stem kal etc5 3008 8005 6006 8002 3282 5812 4522 684
Potato357 700305 200350 800314 5002 8972 5782 9272 689

About the statistics

The statistics estimate the yield of potatoes, meadows for mowing and coarse fodder.

Definitions

Definitions of the main concepts and variables

Agricultural holding

A single unit both technically and economically, which has single management and which produces agricultural products. The holding is independent of municipality boundaries. The agricultural holding's headquarter must be located to an agricultural property.

Agricultural area in use

Agricultural land that is harvested at least once during a year, including planted area of permanent crops, where no harvest has been produced so far. Includes also arable land included in the crop rotation system with no intention to produce a harvest during the year, but which will be harvested the next year.



Meadows for mowing:
Include cultivated meadow and surface-cultivated meadow.

Coarse fodder crops:
Include area of rye-grass, grain for silage, fodder rape, fodder cale and fodder roots.

Fodder roots:
Include area of swedes and turnips for feed and fodder beets.

Standard classifications

Not relevant

Administrative information

Name and topic

Name: Production of potatoes and forage plants
Topic: Agriculture, forestry, hunting and fishing

Responsible division

Division for Primary Industry Statistics

Regional level

County.

Frequency and timeliness

Annual.

International reporting

Eurostat, FAO.

Microdata

A data file with anonymous individual data is stored at Statistics Norway.

Background

Background and purpose

The purpose of the statistics is to estimate the yield of potatoes, meadows for mowing and coarse fodder in Norway. Since 1990, statistics on grain production have been provided by data from administrative sources.

Users and applications

The main users of the statistics are the Ministry of Agriculture and Food, the Norwegian Agricultural Economics Research Institute, the Agricultural Budget Commission, the Norwegian Farmers Union, the Norwegian Smallholders Union etc.

Equal treatment of users

No external users have access to the statistics and analyses before they are published and accessible simultaneously for all users on ssb.no at 10 am. Prior to this, a minimum of three months' advance notice is given inthe Statistics Release Calendar. This is one of Statistics Norway’s key principles for ensuring that all users are treated equally.

Coherence with other statistics

Not relevant

Legal authority

Statistics Act §§2-1, 2-2, 2-3.

EEA reference

Not relevant

Production

Population

In a wider context official statistics on agricultural yields cover grain, potatoes and forage plants. Statistics on grain production are based on administrative data, Agricultural yields and production

Statistics on yield of potatoes and forage plants are based on a yearly sample survey. The target population of this survey is holdings referring to these crops when applying for governmental grants.

Data sources and sampling

The register of holders applying for governmental grants provides information on persons associated with the holding and the size of areas used for potatoes, coarse fodder and meadows for mowing. Data on area harvested, and of total yield of each crop are provided by holders who fill in the forms of the annual survey.

Each year a sample is drawn from the register of holders applying for governmental grants. The size of the sample is about 3 100 holders.

All types of holdings with combinations of areas of potatoes, coarse fodder and meadows for mowing are included in the sample survey of agricultural yields. To provide a better representation in certain counties with few holdings a higher percentage of holdings are selected in these areas.

Collection of data, editing and estimations

In November each year, letters are sent to the holdings drawn for inclusion in the survey. As from 205, the farmers have to report via Internet.

A number of controls and corrections are done to ensure consistency both within a single form and between forms and available register information.

Primary data are obtained from the forms filled in by the respondents. They may contain errors made by the individual respondents when filling in the form. A number of errors are discovered and corrected during the editing process at Statistics Norway.

A number of errors during the collection and processing of the data are unavoidable and include errors that occur during revision, data processing errors etc. Extensive work has been carried out to reduce these errors as much as possible.

Data on area harvested and total yield of the different crops, are provided by the holders. Average yield is calculated regarded to this information. Total yield for the entire county is calculated by use of average yield from the sample survey, and area of the different crops in each county based on information from the total population of agricultural holdings.

Seasonal adjustment

Not relevant

Confidentiality

Figures based on few units (holdings) are not published if this causes risk for identifying any of the units concerned, or the results are considered to be all too uncertain for giving estimates.

Comparability over time and space

The statistics are basically comparable back to 1990.

Accuracy and reliability

Sources of error and uncertainty

Non-response in the survey is due to the failure of individual respondents to deliver questionnaires or that a property has been sold or is no longer farmed as an independent unit.

All sample surveys will be encumbered by a certain amount of uncertainty. Generally, the fewer the observations are, the more uncertain the results. Groups based on few observations will be particularly sensitive to extreme values, i.e. values that deviate considerably from the average. Such extreme values are consequently assigned a weight equal to 1, so that they only represent themselves in the material.

All types of holdings with various combinations of area of potatoes, coarse fodder and meadows for mowing are included in the sample survey. To provide a better representation in certain counties with few holdings a higher percentage of holdings are selected.

The quality of the register basis from which the sample is selected also has an impact on the quality of the final result.

Revision

Not relevant