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ARS Home Pacific West Area Kimberly, Idaho Northwest Irrigation and Soils Research People





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David D Tarkalson    Research Soil Scientist Education: Ph.D. 2001, North Carolina State University, Raleigh, NC. Soil Science. Minor: Water Resources.M.S. 1998, Brigham Young University, Provo, UT. Agronomy.B.S. 1996, Brigham Young University, Provo, UT. Agronomy, Emphasis: Environmental Science. Minor: Chemistry.A.S. 1993, Ricks College, Rexburg, ID. Arts and Science. Experience: 2001-2006: Assistant Professor, Soil Fertility and Nutrient Management, University of Nebraska-Lincoln West Central Research and Extension Center, North Platte, NE.2007-present: Soil Scientist/Systems Agronomist, USDA-ARS, Northwest Irrigation and Soils Research Laboratory, Kimberly, ID. Professional Societies: American Society AgronomySoil Science Society of AmericaCrop Science Society of America Research Expertise and Scientific Interests: Fertilizer use efficiency of crops.Manure management for improved crop production and environmental protection.Nutrient management and crop production under deficit and full irrigation management strategies.Crop production under different tillage practices and planting configurations.Fate of pharmaceuticals in soil and water. Current Research: Evaluation of potato planting configurations, plant populations, nitrogen fertilizer rates, and irrigation amounts on production and fate of nitrate-nitrogen in the soil profile.Determining factors controlling phosphorus leaching in soils.Evaluation of strip-tillage and fertilizer placement strategies in field corn and sugar beet production. Updated June 2007


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