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Start Over You searched for: Publish Year Decade 1950 - 1959 Remove constraint Publish Year Decade: 1950 - 1959 Sudoc Stem A 77.507 Remove constraint Sudoc Stem: A 77.507

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11. Century of progress in agronomy, address by Robert M. Salter, chief, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, at Centennial Convention of National Fertilizer Association, White Sulphur Springs, W. Va., June 14, 1950.

12. Opportunities for feed production in the South, address by Robert M. Salter, chief, Bureau of Plant Industry, Soils, and Agricultural Engineering, Agricultural Research Administration, Department of Agriculture, at North Carolina Farm and Home Week at Raleigh, N. C., Aug. 3, 1950.