PotashCorp is temporarily laying off workers at mines in Saskatchewan and New Brunswick because of a slump in demand.

The Saskatoon-based company says the Allan mine in Saskatchewan won't operate between Dec. 16 and Feb. 9.

The mine in Sussex, New Brunswick is also shutting down for eight weeks between Dec. 30 and Feb. 23.

PotashCorp said in October that it will shut its Lanigan and Rocanville mines in Saskatchewan for eight-weeks starting Nov. 18 and Dec. 7, respectively.

The fertilizer producer reported in October that its third-quarter profit fell 22 per cent from a year ago.

However, chief executive Bill Doyle said at the time that he expects demand to pick up next year.