Northeast Research and Demonstration Farm

Fertilizer and Swine Manure Management Systems: Impacts on Agronomic and Environmental Soil Phosphorus Tests and on Phosphorus Loss with Subsurface Drainage

Authors: Antonio P. Mallarino (Iowa State University) , John E. Sawyer (Iowa State University) , Jeremy Klatt (Iowa State University) , Rameshwar S. Kanwar (Iowa State University) , Carl H. Pederson (Iowa State University) , James L. Baker (Iowa State University) , Kenneth T. Pecinovsky (Iowa State University)

Abstract

Manure or fertilizer can be used to supply the phosphorus (P) needs of crops. However, excess P application increases the risk of P loss from fields and of water quality impairment through increased algae growth. Poor water quality in many Iowa lakes has prompted questions about the impact of P management practices on P loss from fields and the effectiveness of using agronomic soil tests for environmental purposes.

Keywords: Agricultural and Biosystems Engineering, Agronomy

How to Cite: Mallarino, A. P. , Sawyer, J. E. , Klatt, J. , Kanwar, R. S. , Pederson, C. H. , Baker, J. L. & Pecinovsky, K. T. (2003) “Fertilizer and Swine Manure Management Systems: Impacts on Agronomic and Environmental Soil Phosphorus Tests and on Phosphorus Loss with Subsurface Drainage”, Iowa State University Research and Demonstration Farms Progress Reports. 2002(1).