IMMAG - Iowa Manure Management Action Group

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(515) 294-9590 or e-mail

August 2007 IMMAG Update

Welcome to the monthly electronic 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 receive this mailing or have your name removed from the mailing list please contact me at (515) 294-9590 or You may also view this update with direct links on the CURRENT NEWS site on IMMAG.

CURRENT NEWS: The Current News page on the IMMAG site is updated weekly. Please check this site often for the latest news regarding animal feeding operations and manure management issues.

Late summer is a great time for livestock producers to plan for fall manure applications. Producers should start by inspecting manure storage structures. If it is early August and the structure appears to be fuller than the same time last year, take a few moments to determine why. Was there a water leak that contributed extra volume to the pit? Did the pit not get pumped out completely last fall or spring? Have you had excessive rainfall contributing to extra water in an outdoor storage structure? If storage volume is an issue and land application will not start for several weeks, you need to keep a close eye on the storage volume, maintain the appropriate freeboard level for your storage structure and possibly make plans to apply manure to fields that are not identified in your manure plan.

Producers should revisit their manure management plans to determine if application rates need to be adjusted based on the crop grown or to be grown in the future or if manure should be applied to different fields based on the 2006 growing season. Take a few moments to look at your field maps and adjust separation distances for land application if necessary. Have copies of your manure management plan and maps ready for the commercial manure applicator. Review manure application instructions with your commercial manure applicator and clearly state your expectations. In addition, producers and commercial applicators might want to consider developing an emergency action plan for the fall application season in the event of a manure spill or release. Do you know what to do? Do your employees or family members know what to do in the event of manure spill or release? The following links provide reminders and resources for all who apply manure:

Producers Can Prevent Fish Kills By Acting Now - DNR ecoNEws, August 2, 2007

DNR 113 Separation Distances for Land Application of Manure

DNR 117 High Quality Water Resources

ISU PM 1948 Calibrating Liquid Tank Manure Applicators

ISU PM 1941 Calibration and Uniformity of Solid Manure Spreaders

IMMS Vol 2 Land Application of Manure

ISU PM 1859 Emergency Action Plans

EDC 328 Assessing your Emergency Response Planning for Manure Spills

MANURE APPLICATOR CERTIFICATION: Manure application season is right around the corner, have you met your certification requirements for 2007?

Commercial manure applicators who have not met certification requirements in 2007 are reminded they must attend training or take and pass the exam prior to applying manure. Commercial applicators must make an appointment at their County Extension Office to attend training or at the local DNR office to take the exam. Due to scheduling conflicts, many Extension and DNR offices will no longer accept walk-in appointments. Additional information for commercial manure applicators can be found on the IMMAG Web Page or on the DNR Web Page.

Confinement site applicators must be certified to haul, handle and apply manure if the manure comes from a confinement facility with more than 500 animal units. Confinement site applicators should plan to take the certification exam at their local DNR Field Office or contact their County Extension Office to schedule time to attend training. Due to scheduling conflicts, many Extension and DNR offices will no longer accept walk-in appointments. Additional information for confinement site manure applicators can be found on the IMMAG Web page or on the DNR Web Page.

EVENTS: Are you planning a manure management field day, tour, or workshop? If you would like your event added to the IMMAG Events page, please contact Angie at the email address listed below.

Manure Application Education Days, Carroll, IA. The Carroll County NRCS office will be hosting a field day for open feedlot producers on August 7 beginning at 10 a.m. Lunch will be served. The objectives for this field day include: how to calibrate your manure application equipment, how to visually assess application rates, how to collect manure samples, development and implementation of a CNMP and a regulatory update by DNR. For more information including directions please see this url. If you have questions, please contact Kelly Heather in the Carroll County NRCS field office at 712-792-1212, extension 3.

U.S. EPA STAR Awards: Fate and Effects of Hormones in Waste From Concentrated Animal Feeding Operations (CAFOs) Chicago, ILL.  August 20-22, 2007. EPA is holding a public workshop to stimulate discussion of environmental issues associated with Concentrated Animal Feeding Operations (CAFOs) and to promote research collaborations to better understand CAFOs as a source of steroid hormones in the environment. For more information see:

Upper Midwest Manure Handling Expo. You're invited to North America's largest Manure-Focused Farm Show: ManureTech 2007. This year's Upper Midwest Manure Handling Expo will be held 21-August at the Dairy Forage Research Center Farm near Prairie du Sac, Wisconsin (between Madison and Wisconsin Dells). Featured highlights of this year's event include demonstrations of pit agitation, tanker, dragline and solid manure application equipment, hose laying and live action confined space entry/rescue and manure spill response demonstrations. Educational seminars include compost barn management, sod and pasture manure application, tools for evaluating soil moisture in the field, runoff prevention and manure management in no-till. A trade show and equipment vendor display (from application to treatment, in-barn handling to environmental risk assessment) round out the event. There is no admission charge. ManureTech 2007 is sponsored by the Professional Nutrient Applicators Association of Wisconsin, in cooperation with UW Extension and the USDA Dairy Forage Research Center. For more information, and an updated list of vendors exhibiting, visit Watch the website for updates on tentative equipment information, including the remote controlled sonar boat for measuring solids in a manure storage structure and floating pit dredge boat for sand and solids removal. Special note to commercial manure applicators: If you're coming in the night before, contact Kevin Erb for information about the pre-event multi-state applicator reception on August 20. For information, contact Ted Bay at 608-723-2125 or Kevin Erb at 920-391-4652

Ag Field Day- August 23. The Winnebago Soil and Water Conservation District in cooperation with NRCS and ISU Extension are sponsoring a manure management and strip-till field day located ½ mile south of Hwy 9, on 90th Ave. The field day begins at 9:30 a.m. and will continue through mid-afternooon with lunch being served. The field day will focus on manure sampling, equipment calibration, and meeting application rates, including discussion on the P-index.   A local EQIP participant will also share his success story of converting from conventional tillage to no-till/strip-till and the benefits he has seen. There will be strip-till demonstrations in the morning with all manure activities to follow after lunch. For more information contact Brenda Tenold-Moretz at: 641-584-2211

2007 Manure Management Clinic. Registration for the Manure Management Clinic is now open and can be accessed on-line at: The purpose of this clinic is to train service providers, commodity partners, agency personnel, extension field staff and producers in issues related to manure management. This is the fourth year for this clinic, and unlike the previous years, this clinic will not focus on species-specific issues but will focus on a broader range of topics that will help take manure management to the next level. Many of our educational field days and workshops focus on manure regulatory issues. This program will include a regulatory update, but will help participants go beyond regulatory issues to look at emerging issues in manure management. This clinic will include a combination of classroom and field activities. Topics will include: pathogens and antibiotics concerns in manure, siting facilities, composting on-farm mortalities, no-till manure application issues, and trends in feed management. For more information please call Angie at 515-294-9590. This clinic has been approved for the following credits. CCA: Nutrient Management 5.5 credits and Soil and Water Management 4.5 credits. TSP CNMP Update Training: Manure Wastewater Storage and Handling 2 credits; Nutrient Management 5 credits; Land Treatment Practices 4 credits; and Feed Management 1.5 credits. In addition, this two-day clinic will meet Manure Applicator Certification Requirements for 1) Commercial Applicators who were certified in 2006 and still need to attend training in 2007; and 2) currently certified confinement site manure applicators who need to attend 2 hours of annual training in 2007. The training requirements will only meet the 2007 requirements. New applicators that have not been previously certified are welcome to attend, but this training will not meet their certification requirements.


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.


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