Check out Dave Franzen's take on the Christmas Carol by Charles Dickens and you may get some insight into applying urea in winter.
Franzen is NDSU's extension soil specialist, spins a tale of Ebenzer Scrooge as a fertilizer plant manager. His floater driver is Bob Cratchet. The ghosts that visit Ebenezer is of Winters Past, Present and Yet To Come and they take him to the Carrington Research and Extension Center.
Read the tale at