Extension's Agriculture Water Quality Program is looking for high quality on-farm data to help improve out understanding on how soil health practices impact soil phosphorus stratification. Questions still exist on if cover crops and their impact on soil biology, structure, and nutrient cycling exacerbate or alleviate phosphorus stratification. Our program seeks to explore this relationship and hopes to answer "Do long term no-till + cover crops sites have similar levels of stratified P as long term no-till sites? And how uniformly does P stratification exist in no-till fields?"

Participants with gain stratified soil test fertility results, and aid in our understanding of soil test phosphorus stratification and what relationships occur with different soil health management systems. County or producer-led groups that participate will learn about aggregated local results and recommendations for minimizing nutrient loss. Fields of particular interest include those with high soil test phosphorus values, history of manure application, varied fertility placements, and varied length of soil health practices (tillage, cover crops, rotation).

By filling out the information below, a local Agriculture Water Quality Educator with UW-Madison Division of Extension will reach out to start the process. Participation in the program requires fall soil sampling and a survey on past agronomic management.