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Item Managing Nitrogen Fertilizer to Prevent Groundwater Contamination(North Dakota State University, 1994) Weston, Dale; Seelig, BruceItem An assessment system for potential groundwater contamination from agricultural pesticide use in North Dakota.(North Dakota State University, 1994) Seelig, BruceItem Compatibility of North Dakota Soils for Irrigation(North Dakota State University, 1996) Franzen, Dave; Scherer, Tom; Seelig, BruceItem Soil Survey: The Foundation for Productive Natural Resource Management(North Dakota State University, 1993) Seelig, BruceItem Salinity and Sodicity in North Dakota Soils(North Dakota State University, 2000) Seelig, Bruce