Smithfield Foods announced it will close six plants this year as part of a plan to consolidate and streamline its pork business. About 1,800 jobs will be cut. The six plants to be closed are: Smithfield Packing Co. plants in Smithfield, Va., Plant City, Fla., and Elon, N.C.; A John Morrell plant in Great Beard, Kan.; a Farmland Foods plant in New Riegel, Ohio; and an Armour-Eckrich Meats plant in Hastings, Neb.