D. Lemke

发表

Nitrogen Application Rate Effect on Nitrate-Nitrogen Concentration and Loss in Subsurface Drainage for a Corn-Soybean Rotation

Matthew J. Helmers, James L. Baker, Stewart W. Melvin, 2008 .

Subsurface Drainage in Iowa and the Water Quality Benefits and Problem

M. Helmers, W. Crumpton, P. Lawlor, 2004 .

UNDERSTANDING NUTRIENT FATE AND TRANSPORT , INCLUDING THE IMPORTANCE OF HYDROLOGY IN DETERMINING LOSSES , AND POTENTIAL IMPLICATIONS ON MANAGEMENT SYSTEMS TO REDUCE THOSE LOSSES

J. Baker, D. Lemke, 2006 .

Ecosystem services in Iowa agricultural catchments: Hypotheses for scenarios with water quality wetlands and improved tile drainage

K. Forshay, W. Crumpton, D. Lemke, 2022, Journal of Soil and Water Conservation.

Drainage Main Rehabilitation in Iowa

M. Helmers, S. Melvin, D. Lemke, 2009 .

Predicting effects of drainage water management in Iowa's subsurface drained landscapes

Matthew J. Helmers, Ranvir Singh, William G. Crumpton, 2007 .

Nitrogen Application Rate Effects on Corn Yield and Nitrate-Nitrogen Concentration and Loss in Subsurface Drainage

M. Helmers, J. Baker, S. Melvin, 2005 .

Nitrogen loss on tile-drained Mollisols as affected by nitrogen application rate under continuous corn and corn-soybean rotation systems

M. Helmers, J. Baker, S. Melvin, 2012, Canadian Journal of Soil Science.

Comparison of Liquid Swine Manure and Aqua-Ammonia Nitrogen Application Timing on Subsurface Drainage Water Quality in Iowa

Matthew J. Helmers, James L. Baker, Stewart W. Melvin, 2011 .

Temporal Subsurface Flow Patterns from Fifteen Years in North-Central Iowa

Matthew J. Helmers, James L. Baker, Stewart W. Melvin, 2005 .