Mushroom Area England 2007
National Statistics on Mushroom area produced by Defra were released on 24 April 2008 according to the arrangements approved by the UK Statistics Authority. This release shows that both the quantity of compost and bed area used for mushroom production fell between 2005 and 2007. Full details can be seen in Table 1 below. To reduce the burden on growers, this survey no longer collects value or volume of production. The last publication of this data was in 2003.
This survey collects data on the quantity of compost used for mushroom production in the survey year. The compost quantities were collected with a breakdown by phase and method of production. This data is then used to calculate the bed area using a standard set of conversion factors.
Accuracy and Reliability of the Results
The 2004 data was collected by a sample survey of 81% of mushroom growers which generated a response from 76% of those selected. The 2005 and 2007 results were collected through censuses with response rates of 88% and 76% respectively. Values for holdings that were not selected (2004 only) or failed to respond are estimated, which adds a degree of uncertainty to the results. In addition the conversion factors used to calculate bed area rely on a number of assumptions that may not hold for all growers.
Bed area here is defined as the area of beds available for growing crops that were filled with compost at least once during the year. If this is done more than once the area is still only counted once.
There are no mushroom surveys scheduled in the near future. Defra statistical releases can be viewed on the Defra website at http://statistics.defra.gov.uk/esg/statnot/agri.asp. This also contains details of future statistical publications and the dates on which they will be published.
Table 1: Compost and bed area used for mushroom production
2004 (a) 2005 (a) 2007 % Change 2007/2005
Compost used 190,742 184,469 162,726 -12%
Bed area (ha) 160 153 126 -18%
(a) White mushrooms (Agaricus bisporus) only
MUSHROOM AREA ENGLAND 2007
Enquiries to: Farming Statistics, Department for Environment, Food and Rural Affairs, 3rd Floor, Zone A2, Foss House, Kings Pool, 1-2, Peasholme Green, York YO1 7PX, Tel: 01904 455332, email: firstname.lastname@example.org
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Published on: 2008-04-24
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