| Throughout much of the state, subsurface drainage has been necessary to make wet soils tillable and productive. |
| Less than 20 percent of its 31,000 square miles are tillable because of the rocky terrain. |
| The aim is to ensure no net loss of tillable fields. Chongqing is not the only place trying this out, but it is doing so on a provincial scale. |
| The people of Delaware have, indeed, very little land that is not tillable. |
| They grew from 90 head and 325 acres to 150 head and 850 tillable acres and 350 acres of managed woodlot. |
| His strong commitment to the environment and the protection of tillable fields was recognized by the people from his generation. |
