Soil Conservation, Volúmenes 31-32

acres agencies America the Beautiful assistance bermudagrass camp cattle conservation plan conservation practices Conservation Program cooperators cost County Soil cover crop cropland Department of Agriculture drainage economic erosion farm farmers Federal field fish flood forage forest grass grazing groups gully habitat highway illus improve inches income irrigation lake land and water landowners legumes livestock ment miles million acres National needs operation ORVILLE L owners pasture percent plants pond problems production ranch range rangeland RC&D Project river basin rural Scouts Secretary of Agriculture sediment seed servation servation District slopes small watershed soil and water Soil Conservation District Soil Conservation Service soil maps soil scientist soil survey sponsors supervisors technical terraces tion District trail trees trict U. S. Dept Unit Conservationist urban USDA Washington water conservation Water Conservation District water resources watershed projects wildlife woodland woodland management