HAVANA – Cuba agreed yesterday to buy another $30 million in food from Nebraska, strengthening trade relations with an American farm state already selling corn, wheat, soybeans, and other products to the communist island.

Nebraska’s lieutenant governor, Rick Sheehy, and its agriculture director, Greg Ibach, led the trade delegation, which included meat and other agriculture producers on the four-day trip.

In August, Nebraska’s governor, Dave Heineman, visited Cuba and signed a separate deal to export $30 million in agricultural products in an 18-month period. Most of those deals have since been completed, the head of the Cuban food import firm, Alimport, Pedro Alvarez, said.

“We’ve had a great commerce experience with Nebraska and this shows the desire of [American] states to work for free trade with the United States,” Mr. Alvarez told the Associated Press at Havana’s historic Hotel Nacional during a breakfast hosted by Farmland Foods Incorporated featuring Nebraska pork and other meat products.

Mr. Sheehy said the new deal will include the export of pork, cattle, poultry, wheat, corn, soybeans, dry beans, and dairy in the next 18 months.

“Agriculture is the No. 1 industry in the state and Governor Heineman saw an opportunity in Cuba to expand our market,” Mr. Sheehy said.

Mr. Alvarez said the new trade deal includes a $2.8 million meat purchase from Farmland Foods Incorporated.