Practices That Can Help Reduce Phosphorus Loss From The Field

 

 

The state of Iowa instituted a nutrient reduction strategy to combat hypoxia levels in the Gulf of Mexico that flowed through the Mississippi River. A voluntary effort was put together to reduce nutrient flow off of farm fields. Three areas were addressed: Management practices, land use practice, and edge-of-field practices. More information on these three practices can be found in the Michigan State University Extension article reducing nutrient loss article.

 

Phosphorus runoff is of prominent concern for farmers. To address phosphorus loading and to reduce field levels, common agricultural practices should be implemented. A chart from Iowa State University Extension, Reducing nutrient loss: Science shows what works highlights those practices that have a large potential for phosphorus load reduction. To measure economic impact corn yields were evaluated, both increase and decrease. Unfortunately if a farmer uses more than one of these practices, the reduction percentage is not cumulative, i.e. each practice reduction is stand alone. Another chart worth checking out details the impact of various phosphorous management practices.

 

Dr. Tim Harrigan of Michigan State University Biosystem and Agriculture Engineering has done extensive research on ways that Michigan producers can mitigating adverse farming systems impacts on the environment and creating sustainable agroecosystems. His research includes the development of an innovative process that combines low-disturbance tillage, the seeding of forage and cover crops and manure land application in one sustainable operation.