Lee A. Christensen

Manure Management for Water Quality Costs to Animal Feeding Operations of Applying Manure Nutrients to Land

Jonathan D. Kaplan, Mark Peters, Vincent E. Breneman, 2003 .

SOIL, NUTRIENT, AND WATER MANAGEMENT SYSTEMS USED IN U.S. CORN PRODUCTION

Lee A. Christensen, L. Christensen, 2002 .

Toward a general method of estimating productivity-soil depth response relationships

Lee A. Christensen, David E. McElyea, L. Christensen, 1988 .