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Item Soil, Water, and Climate Research by the Soils Department Locations in 1977(North Dakota State University, 1978) Smith, Charles M.Item Soil Structure and Crop Production(North Dakota State University, 1978) Arnold, F. B.; Sojka, R. E.Item Deep Plowing Improves Sodic Claypan Soils(North Dakota State University, 1978) Sandoval, F.M.