Show in a broad general way the most important single ingle factor in preventing erosion Is the production and maintenance of 0 a complete vegetative eget athe cover for the soil A r p gustatson gustafson conser atlon of the soil on gentle slopes where poll does not wash too easily soil crost erosion an can be effectively checked d by cultivating crops on the contour about halt half or of americas soil has been lost since tile revolutionary war the soil of a nation Is its most valuable material heritage farm life will be made happier and more secure through soil cons e ovation tion conservation means intelligent utilization of 0 our resources today and their maintenance for tile use ot of our children tomorrow toino now soil erosion tends tb be progressive I 1 gres sive and the area denuded Is added to annually I 1 eich each war accelerates the ex ha ot of tile soil which Is a fundamental cause or of war robert al hutchins hutching chancellor university of chicago Clil cago |