Odor Control for Liquid Manure Land Application - Irrigation

Pivot irrigation systems can be a substantial source of downwind odor. Systems that spray close to the canopy can minimize dispersion of odorants by altering the dispersion plume. Nozzle selection may also contribute to improved odor control. Nozzles should be positioned to avoid application outside of property boundaries, and if possible, use low-rise, low pressure or trickling systems to achieve maximum odor control of irrigated manure effluents. Systems that spray close to the canopy and employ appropriate nozzle position likely realize uniform nutrient application as well. When pivot application is the most desirable means for nutrient application, careful timing of application will minimize nuisance.

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

Journal Articles

Newsletter Articles

Other Links

• Section 3 Outdoor Air Quality (MWPS-18)
• Minimizing Odor Generation, LPES Curriculum Lesson 41 (pdf)
• DNR 113 Separation Distances for Land Application of Manure (pdf)