Turkey has signed a $218 million agreement with the Soviet Union to export 1.75 million metric tons of grain, flour and macaroni, officials said Tuesday.

"The amount is one of the biggest in Turkey's crop exports," a senior agricultural official said.The deal is backed by Turkish Eximbank loans.

Eximbank officials said the bank was about to release an urgent loan for $18 million. Terms for the remaining $200 million were still being negotiated.