GRAIN SHIPMENTS TO THE USSR -- USDA There were 287,700 tonnes of U.S. corn shipped to the Soviet Union in the week ended April 2, according to the U.S. Agriculture Department's latest Export Sales report. That compares with 106,200 tonnes shipped in the prior week. There were no wheat or soybean shipments during the week. The USSR has purchased 2,825,600 tonnes of U.S. corn, as of April 2, for delivery in the fourth year of the U.S.-USSR grain agreement. Total shipments in the third year of the U.S.-USSR grains agreement, which ended September 30, amounted to 152,600 tonnes of wheat, 6,808,100 tonnes of corn and 1,518,700 tonnes of soybeans.