IMMAG - Iowa Manure Management Action Group

Contact us

(515) 294-9590 or e-mail

December 2011 IMMAG Update

Welcome to the monthly update for the Iowa Manure Management Action Group (IMMAG) Web site. This update is provided as a service to inform you about changes made to the IMMAG Web Page or items of interest dealing with manure management and air quality from animal feeding operations. If you wish to subscribe to this mailing please click here. You may also view this update with direct links on the CURRENT NEWS site on IMMAG.



Follow iowamanure on Twitter The Current News page on the IMMAG site is updated weekly. Follow the Iowa Manure Management Action Group on Twitter at @iowamanure.

The sign-up period for counties to adopt and file construction evaluation (Master Matrix) resolutions is from January 1 to January 31, 2012. Counties can find more information at this url. In 2011, all but eleven Iowa counties chose to participate. A list of the current counties that passed the resolution in 2011 along with links to the Master Matrix can be found by clicking here.

EPA Releases Fact Sheet on Aminopyralid in Manure and Compost
Aminopyralid is an herbicide registered for use on rangeland, pastures, and non-cropland areas such as industrial sites, rights of way, ditch banks, and natural areas. Aminopyralid residues may remain in treated plant material or in manure from animals that have grazed in treated pastures or have been fed hay or forage harvested from treated pastures or crops. There have been cases where people have raised concerns about possible damage to sensitive vegetable crops following the use of compost or manure that contains residues of aminopyralid. If manure or compost containing residues of aminopyralid is applied to certain vegetable crops, it may cause unwanted plant damage. This product is sold under the names Milestone® and ForeFront®.

Part two in the series “Manure Management: Preparing for Winter” is now available. In this article the regulations regarding manure application on snow-covered and frozen ground are discussed.
You can read this article by clicking here.

Not only is manure application a concern in the winter, but environmental impacts from animals in open lots can also be a concern. Livestock producers need to think about lot management to prevent runoff and should also be concerned about overwintering animal in pastures and fields. Check out the article “Over-Wintering Livestock and Regulatory Implications” in the December edition of the Iowa Beef Center’s Growing Beef newsletter.

The NRCS new national 590 Nutrient Management Standard was recently posted and can be found here.  Stay tuned for how this standard will impact the Iowa 590 standard. Additional information can be found here.

Are you interested in attending a training workshop on the use of RUSLE2 and the Iowa Phosphorus Index for use in manure and nutrient management plans in Iowa? If so, please contact Kapil Arora at or Angie Rieck-Hinz at so we can determine the need for this workshop and make plans for workshops dates and locations.



Attention Confinement Site Applicators: In early December the DNR mailed letters to confinement site applicators who missed their annual 2 hour training requirement in either 2010 or 2011 or for both years. If records show you missed training in 2010, please review you own records and contact the DNR (515-281-8648) if your records show differently. If in fact you did miss training in 2010, you will have to take the remedial exam prior to be eligible to renew your manure applicator certification in 2012. If you have not attended training in 2011, you can still schedule time at your local County Extension office to meet training requirements for this year, however time is running short and many offices will have Holiday hours starting December 23.



The IMMAG Events page is a compilation of manure management related events.  Please check the events page often for new listings.

January 5, 2012. Iowa Commercial Manure Applicator Training. Please see this url for a list of locations offering the training workshop.

January – February 2012. Iowa Confinement Site Manure Applicator Workshops. Please see this url for an interactive map and table showing a list of dates and locations.

On January 20, 2012, LPELC is hosting the webinar, "Is your organization ready? A first step to a "playbook" for emergency management." You can access more information at:

Make plans now to visit the IMMAG and Iowa Pork Industry Center booth at the Iowa Pork Congress on January 25-26. You can visit with ISU Extension and Outreach swine and Ag engineering field specialist, manure management specialists and others.


Happy Holidays and Best Wishes for 2012!



Angela Rieck-Hinz
2104 Agronomy Hall
Iowa State University
Ames, IA 50011
(515) 294-9590
Iowa Manure Management Action Group

Manure sampling - Click on photo to enlarge

Manure sampling.


Newest IMMAG update available.

Stockpiling can be a good manure management practice over the winter months. (CLICK TO ENLARGE)