UPDATE 1-Deere to lay off more than 600 at four U.S. plants
August 15, 2014 at 10:10 AM EDT
Aug 15 (Reuters) - Deere & Co, the world's largest maker of farm equipment, said it would indefinitely lay off more than 600 employees at plants in Illinois, Iowa and Kansas as falling grain prices hurt demand for tractors, harvesters and other agricultural machinery.