Six former agriculture secretaries have delivered the latest installment of the Landon Lecture series at Kansas State University.

The Topeka Capital-Journal reports that Monday night’s panel was made up of Mike Johanns, Ann Veneman, Dan Glickman, Mike Espy, Ed Schafer and John Block.

Block served in the administration of President Ronald Reagan from 1981 to 1986. He says the challenge of doubling food production by 2050 to help nourish an estimated 9 billion people can be met with creative adaptation of technology.

The speakers were picked as the school celebrates its 150th anniversary and birth as a land-grant institution.

The Landon Lecture is named for Gov. Alf Landon, a Republican who was Kansas governor from 1933 to 1937. Landon lost to Franklin D. Roosevelt in the 1936 presidential election.

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In an Oct. 22 story about the Landon Lecture, The Associated Press erroneously reported that Kansas State University is celebrating its 100th anniversary. It is celebrating its 150th anniversary.