USDA REPORTS CORN SWITCHED TO USSR The U.S. Agriculture Department said private U.S. exporters reported 200,000 tonnes of corn previously to unknown destinations have been switched to the Soviet Union. The corn is for delivery during the 1986/87 marketing year and under the fourth year of the U.S.-USSR Long Term Grain Supply Agreement. The marketing year for began September 1. Sales of corn to the USSR for delivery during the fourth year of the agreement -- which began October 1, 1986 -- now total 2,600,000 tonnes, it said. In the third agreement year sales totaled 6,960,700 tonnes -- 152,600 tonnes of wheat and 6,808,100 tonnes of corn.