Full results for all previous contests are available under 'past years', as are the winning poems and judges' comments and I recommend you have a read so you know what kind of thing they are looking for. I think they pre screen so the judge, this year Andrew Motion, only reads a selection.
Entry fee: £5 (Cheque or Paypal)
Open Poetry (up to 40 lines)
Prizes: 1st £1000, 2nd £500, 3rd £250
Deadline 30 November
I have a soft spot for the plough as I won first prize for a short poem a couple of years ago, thought this category doesn't seem to be running this year.