Odor Control for Liquid Manure Land Application - Manure Additives

Manure additives have been widely debated as to their effectiveness in controlling odorous emissions. In general, there have not been any additives or classes of additives, so far identified, that routinely reduce odor during manure application. Costs are product-specific and often determined as much as application rate and frequency as by the cost per unit weight.

Extension Publications

• PM 1970a Practices to Reduce Odor from Livestock Operations (pdf)
• PM 1970b Practices to Reduce Odor from Livestock Operations Flowchart (pdf)
• PM 1990 Instruments for Measuring Concentrations and Emissions Rates of Gasses and Particulates from Animal Feeding Operations (pdf)
• EDC 162h Air Quality and Animal Agriculture (pdf)
• PM-1935 Gaseous Emissions from Animal Agriculture (pdf)
• PM-1936 Air Quality Resources for Iowa Animal Agriculture (pdf)
• PM 1963a The Science of Smell Part 1: Odor perception and Physiological Response (pdf)
• PM 1963b The Science of Smell Part 2: Odor Chemistry (pdf)
• PM 1963c The Science of Smell Part 3: Odor detection and measurement (pdf)
• PM 1963d The Science of Smell Part 4: Principles of Odor Control (pdf)
• PM 1964 Odor Control Methods Used by Iowa Pork Producers (pdf)
• FS925-A Understanding Livestock Odors (pdf)

Abstracts, Conference Proceedings, Presentations and Reports

• Odor Rating System Demonstration Project U of MN
• Final Report Evaluation of Commercial Manure Additives (pdf)
• NPB Testing of Manure Additives for Odor Control: Column Testing (pdf)

Journal Articles

Newsletter Articles

Other Links

• Section 3 Outdoor Air Quality (MWPS-18)
• Minimizing Odor Generation, LPES Curriculum Lesson 41 (pdf)