Child Poverty Map, UK minus NI...
http://www.guardian.co.uk/news/datablog/interactive/2012/jun/15/poverty-map-britain
Poverty in NI...
http://www.belfasttelegraph.co.uk/news/local-national/northern-ireland/action-on-child-poverty-demanded-16101327.html
Areas with a wide usage of Allotments and houses with large gardens will be areas where people may grow their own. Churches (of all varieties) may have been doing this sort of thing informally for years.
There is very little point in anybody viewing these figures, doubting them. These are neither Government figures or anti-Government figures.
Even the IMF sees that these figures can only rise, as it cries out for a change of direction from current Government Policies.