Project ID



In the fourth year of this ongoing project, the effects of nine N-management practices under different tillage and cropping systems were evaluated. Forty experimental plots equipped with individual sumps and subsurface drainage metering and monitoring devices were used for the study. Overall results indicate that manure application rates and methods can be successfully managed for corn-soybean systems without damaging the water quality if the appropriate amount of N from swine manure can be applied.

Principal Investigator(s)

Rameshwar S. Kanwar


Douglas L. Karlen, Cynthia A. Cambardella, Thomas B. Moorman, Thomas R. Steinheimer, Thomas S. Colvin

Year of Grant Completion