Firefighters were called to a blaze in a Tydd St Giles field.
Crews from Wisbech were called to a field in Cross Drove, on Sunday (August 31) at 2pm.
A straw bale and about 50 sqm of a stubble field were alight.
Firefighters used beaters and hose reel jets to put out the blaze.
They returned to the station at 3.20pm.
The cause is unknown.