BUDA 2012-04-15Alan Madison plants corn seed in Buda, Ill., April 9, 2012. As early as mid-March, temperatures in northern Illinois were reaching into the 80s, giving farmers a head start on the planting season. (Daniel Acker/The New York Times) **EDS.: 13TH IN A SERIEå?S OF 14 STANDå?ALONE PHOTOå?S** Foto DANIEL ACKER / NY Times / SCANPIX / kod 10304***BETALBILD***