University of Maryland Extension

UM-PMT Withdrawn: How will this affect 2014 plans?

Image Credit: 
Sara BhaduriHauck

MDA withdrew the UM-PMT (University of Maryland- Phosphorus Management Tool) from regulatory consideration! How does this affect nutrient management plans for 2014? Phosphorus Site Index (PSI) studies will be done on fields with excessive phosphorus (over 150 FIV-P) to generate recommendations.  In addition, the University of Maryland – Phosphorus Management Tool (UM-PMT) will be applied and a table generated to compare recommendations. Information presented in the table will include:

  • Farm and Field ID
  • PSI Category and PSI Recommendations
    • Recommended Manure Application (tons or gallons per acre)
    • Recommended Commercial Fertilizer (pounds P2Oper acre)
  • UM-PMT Category and Recommendations
    • Recommended Manure Application (tons or gallons per acre)
    • Recommended Commercial Fertilizer (pounds P2Oper acre)

The PSI recommendations, not the UM-PMT recommendations, will be used in 2014. The table will serve strictly as a means of comparison allowing clients to clearly see the consequences of the new tool.

In the future, it is expected that the UM-PMT will be the regulatory P risk assessment tool used. Currently, MDA is suggesting a “phased-in-implementation” of the UM-PMT; the University is waiting for further developments and news from MDA. Remember that the UM-PMT requires additional results from the soil lab test. The new list of soil labs details the needed information. Please call Tricia Hoopes or stop by for a copy of the updated soil labs list.

 

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