IMMAG Updates

August 2012

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.

As we begin to approach fall manure application season there a few general reminders we need to think about:

            1). Early Fall Manure Application – think about it.  Crops are being harvested early due to dry conditions and the manure is going on as fast as the crops come out.  This is when you need to decide if your manure has value as a fertilizer source and if you think it does then you should treat it like a fertilizer source.  This may mean asking your commercial manure applicator to back off from early application, especially on high ammonium-nitrogen sources of manure like liquid swine manure.  For more details read the comments from John Sawyer in the newsletter article linked below titled “Soil Fertility Management Issues Following Drought-Damaged Crops-Nitrogen”.

            2). Foaming Pits and Pumping Safety- again think about it and act wisely.  The debate on what causes foaming manure pits and possible solutions is on-going.  Take time to visit with your employees, family members and commercial manure applicators to review safety measures when pumping all deep pits, foaming or non-foaming. And remember, NEVER enter a building or manure storage structure when liquid manure is being agitated or pumped.  Some resources for your review:
            Foaming and Deep-Pit Manure Pumping and Safety Video

            Use Caution When Pumping Manure from Deep-Pits

            3). Land Application Management. Below is a series of articles addressing land application, nutrient management, and water quality issues. Take time to read through these articles prior to land application this fall.  

            Fall Manure Application Issues

            Dry Soil Conditions and Liquid Manure Application

            Soil Fertility Management Issues Following Drought-Damaged Crops-Nitrogen

            Managing Manure from Open Feedlots in Dry Weather


Iowa State University Extension and Outreach in cooperation with IDNR will be hosting a statewide commercial manure applicator certification workshop on Wednesday, September 5 from 9 a.m. to noon.  This is a great opportunity to get new and existing employees trained to meet Iowa certification requirements before the busy fall application season.  If you have already attended training this year there is no need to attend this event.  For additional information about this training event and to see a list of training locations please click here.   Commercial applicators are required to attend 3 hours of training each year.

Confinement site applicators should also plan to attend the required 2 hours of annual training by contacting their County Extension office to determine the training schedule or to make an appointment to view the training video.  Confinement site applicators are required to attend 2 hours of training each year to maintain their 3-year license.


IMMAG offers a list of service providers that includes, manure testing labs, soil testing labs, private consultants, manure plan writers, engineering consultants and list of all currently certified commercial manure applicators businesses in Iowa.  If you are looking to hire a commercial manure applicator for this fall please visit this page and click on Private Consultants and then “2012 Currently Certified Commercial Manure Applicator Businesses.” If you have questions about these lists of service providers please contact Rachel Klein at 515-294-6685 or Angie Rieck-Hinz at 515-294-9590. Neither endorsement of companies, individuals or their services mentioned is intended, nor is criticism implied of similar companies, individuals or their services not mentioned.


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

The 2012 North American Manure Expo will be held on August 22 at the USDA Dairy Forage Research Center near Prairie du Sac, Wisconsin.  More information at: This is a great venue to see a wide variety of manure application equipment, listen to current research, and visit exhibitors.  I hope to see you there. 

Representatives from EPA Region 7 are hosting a Concentrated Animal Feeding Operations (CAFO) meeting on August 30 in Arcadia, Iowa.  EPA’s inspection program for concentrated animal feeding operations (CAFOs), winter feeding areas, aerial overflights, medium-sized CAFOs, nutrient management plans and manure stockpiles will be discussed. EPA staff will also review the selection of CAFOs for inspection, flyover practices and details about CAFO on-the-ground inspections.  More information at this url.

September 5. Iowa Commercial Manure Applicator Certification Training, 9 a.m. to noon. 

The University of Illinois will be offering a Comprehensive Nutrient Management Plan (CNMP)   workshop for Technical Service Providers this fall.  This six-week course will be offered on-line.  For more information please see: or you can access the press release here.

The call for abstracts is currently open for the Waste to Worth Conference, April 1-5, 2013. Denver, Colorado.

Have a safe fall application season,


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

Copyright © 2012, Iowa State University. All rights reserved.


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