Module 4
The Phosphorus Runoff Index
Objectives for this module
Understand and gain a working knowledge of assessing and managing P runoff losses from fields.
Phosphorus losses from fields
- What causes phosphorus (P) to be lost to streams, lakes, etc.?
- What tools are available to assess the risk of P loss to watercourses?
- Of the tools, which one makes the most sense?
The Phosphorus Runoff Index
- What is the basic concept driving the Phosphorus Runoff Index?
- What are the main factors considered in the P Index?
- What do the P Index risk ratings (i.e. Low, Medium, High, Very High)
mean?
- What steps can be taken on the farm to reduce the P Index rating
and, thereby, reduce the risk of P loss?
