Phosphorus indexes are field-scale qualitative assessment tools that are used to estimate the relative potential for phosphorus (P) loss from a field to surface waters. This publication provides research-based information to assist agricultural professionals and their clients in identifying conservation practices that may reduce P loss from a field. Provides general information about the P Index that may be useful for policy makers and others who have an interest in nutrient management in agriculture. This publication does not include all of the information needed to compute a P index worksheet.
