Precision Management Services
Precision Management Services
 
 
 
 

Manure Management Plans

Due to more environmental regulations, MMP planning continues to be a more complex issue, especially with the introduction of phosphorus index-based plans. Any field that will receive manure applications will need to be soil tested prior to developing an MMP and must be retested every four years. We can assist you in the complete process from soil testing your fields to developing, updating and maintaining an MMP for your operation. The information below describes some of the requirements and what needs to be included in an MMP.

What is an MMP?
A manure management plan (MMP) is a tool for producers to use when they plan their nutrient placement to optimize crop production. Filling out an MMP helps producers identify the amount of manure being produced, the nutrient concentration in the manure, the number of acres that are required for land application and the amount that will be applied to each available acre. Mid-size and large producers are required by state law to fill out and file an MMP with the DNR. MMPs can be based on the nitrogen uptake needs of the crop, although phosphorus index-based plans will be phased in until 2008 when all plans must be phosphorus index-based.
 

Who Needs a Plan?
Iowa law requires that a manure management plan (MMP) be submitted to the DNR for confinement feeding operations meeting any of the following criteria:

  • The operation has an animal unit capacity of more than 500 animal units and the operation was constructed or expanded after May 31, 1985;

  • The operation proposes to construct a manure storage structure and will have an animal unit capacity of more than 500 animal units; or,

  • A person applies manure from a confinement feeding operation located outside of Iowa on land in Iowa (does not apply if the operation's capacity is 500 animal units or less).

Manure management plans are not required for open feedlots, except when specifically required as part of a permit or an agreement with the DNR. Owners of a combination open feedlot and confinement operation must file an MMP for the confinement operation if the confinement facilities have capacity for more than 500 animal units.

Phosphorus and Manure Management Plans

As of October 25, 2004, confinement producers who are required to submit manure management plans (MMP) must include the phosphorus (P) index when developing an original MMP. Producers who submitted an original MMP prior to October 25, 2004, will need to use the P index when preparing their MMP.

Implementation Date for P Index-based plans

Original MMP Submitted

P Index-based MMP due

prior to April 1, 2002

First annual update after Aug. 25, 2008

between April 1, 2002 and Oct. 24, 2004

First annual update after Aug. 25, 2006

on or after Oct. 25, 2004

upon submittal

Left: Phosphorus tends to bond to soil particles, so soil erodibility and the potential for soil to leave the field are major factors determining results from the P index. Photo courtesy of USDA-NRCS.

The P index was developed by scientists from Iowa State University, the National Soil Tilth Laboratory and the Natural Resources Conservation Service to determine the risk of P loss from a field. The index is based on erosion, soil test, location of the field, P applications and other factors.

Once a P index-based MMP is required, producers will need to run the P index on each field in their plan. The P index assesses a field as having Very Low, Low, Medium, High, or Very High risk of P loss to surface waters. The results of the P index will be used to determine manure application rates in the MMP.

Changes to Iowa law in 2002 required using the P index to determine manure application rates in MMPs.

 

*Information on this page is from http://www.iowadnr.com. Click For More information.


 

Precision Management Services
103 North Portland Street
Bancroft, Iowa 50517

(515) 885-0330

 

 










Login

Site Map

Contact

Legal


© 2005 Precision Management Services. All Rights Reserved.

GPS Soil Testing | Data Processing | Manure/Nutrient Management Plans | Crop Scouting
Record Keeping | GIS Solutions | Ag Leader | GPS Equipment | Contact Us | Home