Urea is just over 300 , puts 34.5 % at 230 ish ,Quoted today for 60 tons, 50 of which 34.5N and 10 tons 21/8/11+7S or 20/10/10/7S
Big brand N £282
Big brand 21/8/11 £317
'Imported' N. £267
I've no idea whether these prices are as good as possible or not. They needed at least two artic loads for that price apparently. Payment March/April/May, which is included but adds a couple of quid I guess.