Utiliser "tillable" dans une phrase

1. By mid-June 2008, Governor Chet Culver had assigned disaster designations to 83 of 99 counties after 16 percent of the state’s tillable acres were left under water

2. This reservation embraces about 3,200,000 acres of land, of which one-third is supposed to be tillable; two-thirds wooded, grazing and worthless