Soil Conservation, Volúmenes 33-34U.S. Government Printing Office, 1967 |
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Página 5
... slope of his farm of 45 rai ( about 18 acres ) in Amphur Chiengkarn District of Changwad Loei Pro- vince is broken with contour ter- races , and curving rows of healthy cotton plants sweep gracefully out of sight around the bend . Near ...
... slope of his farm of 45 rai ( about 18 acres ) in Amphur Chiengkarn District of Changwad Loei Pro- vince is broken with contour ter- races , and curving rows of healthy cotton plants sweep gracefully out of sight around the bend . Near ...
Página 8
... slopes . Slowly but surely Cuicul was buried . The large Roman city at Tim- gad , some 70 miles to the south- east , also lay buried for centuries under deposits of wind - blown soil until it was unearthed shortly after 1900 . Today , a ...
... slopes . Slowly but surely Cuicul was buried . The large Roman city at Tim- gad , some 70 miles to the south- east , also lay buried for centuries under deposits of wind - blown soil until it was unearthed shortly after 1900 . Today , a ...
Página 17
... slope reading as part of the soil survey in a suburban area . USDA's conservation policies. A crew of 15 soil scientists working in a 7 - county area more than a million acres in less tion for the Southeastern Wiscon- sin Regional ...
... slope reading as part of the soil survey in a suburban area . USDA's conservation policies. A crew of 15 soil scientists working in a 7 - county area more than a million acres in less tion for the Southeastern Wiscon- sin Regional ...
Página 33
... slopes of the predominantly mountainous islands , cultivated fields are easily seen as the major source of sedi- ment pollution . Charles T. Bourns , chief of Fed- eral Water Pollution Control Ad- ministration activities in the State ...
... slopes of the predominantly mountainous islands , cultivated fields are easily seen as the major source of sedi- ment pollution . Charles T. Bourns , chief of Fed- eral Water Pollution Control Ad- ministration activities in the State ...
Página 52
... slope cuts on a nearby freeway . benefit from the ingenuity of three Wheat farmers improve equipment. equipment . These units also will operate and maintain public parks SARA is building on land bought to help clear easements . When all ...
... slope cuts on a nearby freeway . benefit from the ingenuity of three Wheat farmers improve equipment. equipment . These units also will operate and maintain public parks SARA is building on land bought to help clear easements . When all ...
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acres Administrator agencies AMERICA THE BEAUTIFUL American assistance Association beauty Committee conservation plan conservation practices Conservation Program conservationist cooperation cost-sharing County Soil Creek crop cropland Department of Agriculture ditch drainage economic equipment erosion farm farmers Federal feedlot field fish flood Forest Forestry grass grazing illus improve inches industry irrigation lake landowners Lincoln Hills livestock McHenry County ment miles National natural resources needed Office operation ORVILLE L outdoor recreation park pasture percent Plains Conservation plant pollution pond Poteau River problems production Puerto Rico ranch range RC&D Project reservoirs river basin rural Scouts sediment seed servation servation District slopes soil and water Soil Conservation District Soil Conservation Service soil scientist soil surveys sponsors streams supervisors technical terraces tion District town trees trict unit conservationist urban USDA velopment Washington Water Conservation District watershed projects wildlife woodland