Revised guidelines for the Iowa State University (ISU) phosphorus (P) recommendations and ISU P management may be needed. This project utilized fertilizer and poultry manure P and experiments at research farms and producers' fields with corn-soybean or alfalfa-corn rotations to evaluate several P management practices and provide new knowledge about P management.
Are there new ways to achieve optimal phosphorus management?
This project provides information needed to improve phosphorus management recommendations.
Year of Grant Completion
Mallarino, Antonio P., "Developing ecologically sound and profitable alternative fertilizer and manure phosphorus management strategies" (2008). Leopold Center Completed Grant Reports. 309.