IMMAG Updates

August 2013

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 Iowa DNR has recently updated Appendix A to the Manure Management Plan forms with crop yield information through 2012. You can access the form on the DNR Animal Feeding Operations (AFO) Web page by clicking on AFO Resources and then AFO Forms or you may click on this direct link. If by chance you are still directed to the previous version where the yield data is current through 2011, please clear your browser history and try again. The form is also linked on the IMMAG Plans, Permits and Regulations page.

Last year’s drought and early harvest provided opportunities for earlier than usual manure application. That early application season is leaving behind challenges during this late summer as manure pits have had more time to fill and many producers are facing storage issues going into a fall with later than usual expected harvest dates. Livestock producers are reminded to keep an eye on manure levels in storage structures and to maintain freeboard requirements to prevent manure storage structures from over-topping. Producers short on storage volume may want to consider hauling a few loads now to increase storage as we go into the harvest season. Options include application on pasture, harvested small grain stubble, recently harvested alfalfa fields, sweet corn acres and prevent plant acres. Livestock producers may need to work with neighbors to find suitable land application areas or additional storage. Be sure to document all applications in your manure plan, if required, prior to application. From an agronomic perspective, it is still too early to apply liquid manure if you value your nitrogen source, but hauling a few loads will ensure adequate storage capacity going into fall and can help prevent manure releases from storage structures.

Along with the caution about full pits comes our annual reminder to use caution when pumping manure from deep-pits. Livestock producers and commercial manure applicators need to be aware of the hazards of gas generation in manure storage structures and the potential lethal aspect when working around manure storage structures. Last year, ISUEO distributed this press release, Caution Urged when Pumping Manure From Deep Pits. Although we have not heard about as many fires and explosions at facilities this past year, we highly recommend you take time to discuss the points listed in the above link with your family, employees and your commercial manure applicator. Hang tags from the Iowa Pork Producers Association can be downloaded and printed and placed on facility doors to help prevent entry during manure agitation and pumping. The tags are available at:

South Dakota State University and USDA-ARS researchers are developing a process-based nutrient spreadsheet for bedded beef confinement facilities. This calculator will predict manure quality, quantity and fertilizer value for different bedding materials, storage times, pack depths, and ambient air temperatures. Graduate student Fey Ayadi, with Dr. Erin Cortus (SDSU) and Dr. Mindy Spiehs (USDA-ARS) are conducting this project. They have prepared a questionnaire that will help design a tool that will be useful to you and others in the industry. They would like your help in identifying the format of inputs and outputs to this calculator. If you are on the list of IMMAG service providers you may be receiving a copy of the survey in the mail. Please take a few moments to complete the paper survey and return it to SDSU. If you are the owner/manager of a bedded beef confinement facility please take a moment to complete the on-line version of the survey at: Service providers receiving the survey in the mail may prefer to complete the on-line version, however please don’t respond via mail and the on-line method. One response is adequate.


Several years ago Iowa State University Extension helped to create a set of record-keeping forms for livestock producers with NPDES permits. Joe Lally, at ISU, has recently updated those forms. They can be found on the plans, permits and regulations page of the IMMAG site, under the tab "Open Feedlots". The forms are numbered 1-11 and the list also includes links to the two required DNR forms for quarterly and annual reports. Be sure to read the instructions provided on the web page for use of the forms. If you have any questions about the use of these forms, please contact Joe Lally at 515-294-1496 or


Now is a great time to make-sure your manure applicator certification status is up-to-date. Commercial manure applicators conducting business in Iowa must attend 3 hours of annual training offered at their local County Extension Office, or, must take and pass the certification exam once every year. The exams are only offered at the DNR field offices. Commercial manure applicators who have not met certification requirements yet this year must do so before they can handle, haul or land-apply manure.  Confinement site manure applicators must attend 2 hours of training each year, or take and pass the certification exam once every three years.  Additional information for both commercial and confinement site manure applicators can be found on the IMMAG site at, or on the DNR Web page.


This web page has recently been updated with new information, better navigation and is now hosted on a different server so be sure to update your bookmark to Most changes should be transparent to the user, but the biggest change is the organization of the fact sheets, web links and research reports. Each is categorized by emission making it easier to find information on odors, hydrogen sulfide, ammonia, dust and particulates and general air quality information.


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

Iowa State University Extension and Outreach will sponsor a Low-Cost Feedlot Effluent Pumping and Flood Irrigation Field Day on August 27 starting at 1 p.m., south of Marcus on the Galles Feedlot. This system is designed to incorporate a pumping system below a settling basin that will move the nutrient-rich effluent away from the road ditch to a nearby crop field. These low-cost pumping systems can provide nutrients and water to the cropland thereby keeping nutrients out of local water sources. This field is sponsored in part by the Water Quality Initiative for Small Iowa Beef and Dairy Feedlot Operations project, supported in part by a Section 319 grant through the IDNR and U.S. EPA, Region 7.

The Technical Service Provider Network will hold its second annual meeting and training event on September 6, from 9 a.m. to 4:30 p.m. at the Quality Inn and Suites Starlite Conference Center in Ames. Training topics will include feed management, nutrient management planning for the 590 standard and NRCS Quality Assurance Review. For more information contact Joe Lally at

Iowa State University Extension and Outreach, IMMAG and the Iowa USDA-NRCS are offering a one-day Advanced RUSLE2 Workshop on September 26 at the Polk County Extension Office in Altoona.  Participants will learn about using templates and software shortkeys and managing dominant critical area with a primary emphasis on understanding and implementing different conservation practices and use of different tillage implements. You should only plan to attend if you have attended the Introductory RUSLE2 and Iowa P-Index workshop in the past. Workshop requirements and registration details are available at the above link. Registration is limited to 30 people, walk-in registration is not allowed.

Conservation Planning Workshop, Part II for TSPs and Conservation Planners will be held on Nov. 4-8, at the Boulders Conference Center, Denison, Iowa. This NRCS course prepares the participant to independently apply the NRCS planning process; and to utilize supporting technology to assist clients in making decisions that protect, conserve, and enhance the resources, and meet client needs. This is a required course for those who wish to certify as a TSP the Certified Conservation Planner category and Option 2 of the CAP CNMP certification. Iowa holds this course every other year and class size is limited to the first 25 participants who complete the registration process. A substantial discount for the course is available Technical Service Provider Network members and those who become members prior to November 4, 2013. Question may be directed to Joe Lally at 515-294-1496 or


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

Copyright © 2013, Iowa State University. All rights reserved.


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