Leopold Center for Sustainable Agriculture

Completed Competitive Grant

Impacts of swine manure application and alternative N-management practices on productivity, sustainability and water quality

Project ID: 1997-60

Abstract

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.

Lead investigator: Rameshwar Kanwar, ISU Agricultural and Biosystems Engineering, et al

Year of grant completion: 1998

This competitive grant project was part of the Leopold Center's Initiative.

Topics: Nutrient management