Exports of key agricultural products from Ukraine have dropped by about 50% since the beginning of the Russian invasion earlier this year, according to figures released by the agriculture ministry late on Monday.

On February 24, Russia launched what it called a “special military operation” against Ukraine. As a result of the conflict, Ukrainian seaports were shut down, preventing the harvest of a substantial portion of the country’s crops or causing them to be completely destroyed.

Agricultural exports between Feb. 24 and Aug. 15 this year fell to 10 million tonnes from around 19.5 million in the same period last year, the ministry data showed.

The 2022 grain harvest in Ukraine is forecast to fall to around 50 million tonnes from a record 86 million tonnes in 2021.

From Feb. 24 to Aug. 15 this year, Ukraine has exported 3.8 million tonnes of corn, 1.4 million tonnes of sunflower seeds, almost 1 million tonnes of sunflower oil and around 640,000 tonnes of wheat, the ministry data showed.

The country, whose food production, according to the government, is capable of feeding up to 400 million people, also exported barley, soy beans and oil, sunflower and soybean meals.

At the end of July, three Ukrainian Black Sea ports were unblocked under a deal between Moscow and Kyiv, brokered by the United Nations and Turkey.

But even with the ports opened, Ukraine’s agricultural exports are significantly lower than before the conflict, when Ukraine exported up to 6 million tonnes of grain a month.

Last week the agriculture ministry said Ukraine’s grain exports in the 2022/23 season up to Aug. 19 are down 51.6% from a year earlier at 2.99 million tonnes.

Grain exports for the 2021/22 season, which ended on June 30, rose 8.5% to 48.5 million tonnes thanks to a large volume of shipments before Russia invaded.