EAST PERU, Iowa (AP) – Well-known farm news broadcaster Mark Pearson has died at his home in Madison County. Chief Deputy Jason Barnes of the Madison County Sheriff’s Department told The Des Moines Register that Pearson died Sunday at his farm home near East Peru of an apparent heart attack. The 54-year-old Pearson was host of the “Market to Market” program on Iowa Public Television and co-hosted a program about agricultural news on WHO-AM radio.Pearson had worked as assistant secretary of the Iowa Department of Agriculture.