Soil Fertility

Manure Nutrients

• Extension Publications
• Newsletter Articles
• Conference Proceedings and Reports
• Photo Gallery
• Presentations
• Links

Extension Publications (pdf)

• PM 3014 How to Interpret Your Manure Analysis
• PMR1003 Using Manure Nutrients for Crop Production
• PM 1558 Management Practices: How to Sample Manure for Nutrient Analysis
• PM 1609 You Can't Afford Not to Haul Manure
• PM 1941 Calibration and uniformity of solid manure spreaders
• NMEP 3 Nutrient Management: Manure Resources
• NCR-346 Applying Manure to Alfalfa
• A3769 Recommended Methods of Manure Analysis

Newsletter Articles

• What are average manure nutrient analysis values? (1/2009)
• Liquid swine manure nitrogen availability (1/2009)
• Using layer manure for crop production (11/2008)
• What is meant by crop availability of manure nutrients? (1/2008)
• Is manure the same as fertilizer as a crop nutrient resource? (3/2007)
• Crop and soil response to liquid swine manure phosphorus application (Summer 2003)
• Crop and soil response to liquid swine manure application (Spring 2003)
• Integrating conservation tillage and manure management to improve water quality (3/2003)
• Manure sampling, analysis and applicator calibration (12/2002)
• Project demonstrates crop nutritive value of liquid swine manure (9/2002)
• Residue management and manure application (10/2002)
• Test cornfields for nitrate if manure was not incorporated (5/2002)
• Should fertilizer nitrogen be applied after injected swine manure? (3/2002)
• Manure management demonstration at the Thole-Humphrey Farm (9/2001)
• Producers learn value of manure sampling and use on crop acres (9/2001)
• Survey shows manure sampling yields positive results (Spring 2001)
• Take credit for manure application to offset fertilizer costs (Spring 2001)
• Phosphorus and swine feeding (4/2001)

Conference Proceedings and Reports

• Mallarino, A.P., and M.U. Haq. 2008. Phosphorus loss with surface runoff shortly after application of poultry manure and fertilizer without incorporation into the soil. Final project report to the Iowa Egg Council. (pdf)
• Mallarino, A.P., and M.U. Haq. 2007. On-farm demonstration of the impact of phosphorus soil-test levels and management on phosphorus loss with surface runoff. Final progress report for water quality project. (pdf)
• Mallarino, A.P., J.E. Sawyer, D. Kaiser, D. Ruiz-Diaz, B. Allen, D. Barker, and D. Wittry. 2007. Study of nitrogen and phosphorus transformations from poultry manure and fertilizer using soil incubation and soil testing: A complement to ongoing field demonstrations. Report to the Iowa Egg Council. (pdf)
• Killorn, R., J. Moore, and R. Unger. 2007. Corn grain response to nitrogen in liquid swine manure and urea in Lyon County, Iowa, 2006-2007. Final project report. Iowa State Univ., Dept. of Agronomy, Ames. (pdf)
• Mallarino, A.P., J.E. Sawyer, D. Kaiser, D. Ruiz-Diaz, B. Allen, D. Barker, and D. Wittry. 2007. Demonstration of agronomic and environmentally sound utilization of nitrogen and phosphorus in poultry manure. Final project report to the Iowa Department of Agriculture and Land Stewardship, Division of Soil Conservation, IFLM program. (pdf)
• Mallarino, A.P., M.M. Barbazan, and D.J. Wittry. 2005. Swine manure phosphorus use for crop production in Iowa. p.91-97. In North Central Extension-Industry Soil Fertility Conference. Proceedings. Vol. 21. Des Moines, IA. (pdf)
• Mallarino, A.P., B.L. Allen, and M.U. Haq. 2005. Manure management impacts on phosphorus loss with surface runoff and on-farm phosphorus index implementation. An overview of ongoing research. In Agriculture and the Environment Conf. Proceedings [CD-ROM]. March 8-9, 2005. Iowa State Univ. Extension, Ames, IA. (pdf)
• Sawyer, J., A. Mallarino, and J. Lundvall. 2005. Swine manure nutrient utilization project. Final project report to the Iowa Department of Agriculture and Land Stewardship, Division of Soil Conservation, IFLM program. (pdf)
• Mallarino, A., J. Sawyer, D. Wittry, D. Barker, D. Kaiser, and D. Ruiz-Diaz. 2005. Demonstration of Agronomic and Environmentally Sound Utilization of Nitrogen and Phosphorus in Poultry Manure. Crop year 2004 project report to the Iowa Department of Agriculture and Land Stewardship, Division of Soil Conservation, IFLM program. (pdf)
• Lorimor, J, and J.E. Sawyer. 2004. Swine USA anaerobic digester performance analysis. Part 1. 12 p. Final project report, Iowa NRCS. (pdf)
• Loria, E.R., J.E. Sawyer, and J.C. Lorimor. 2004. Use of anaerobically digested swine manure in corn production. Part 2. 32 p. Final project report, Iowa NRCS. (pdf)
• Sawyer, J., A. Mallarino, and J. Lundvall. 2004. Swine manure nutrient utilization project. In Proc. Agriculture and the Environment Conf. 1-2 March. Iowa State Univ., Ames, IA (pdf)
• Kanwar, R., J. Baker, C. Pederson, A.P. Mallarino, J. Sawyer, and K. Pecinovsky. 2004. Impact of swine manure applications on nitrate and phosphorus in subsurface drainage water. p. 26-27. In Annual progress reports-2003. Northeast research and demonstration farm. ISRF03-13. Iowa State Univ., Ames, IA. (pdf)
• Kanwar, R., C. Pederson, J. Baker, A.P. Mallarino, J. Sawyer, and K. Pecinovsky. 2003. Fertilizer and swine manure management systems: Impacts on crop production and nitrate-nitrogen leaching with subsurface drainage. Annual progress reports-2002. Northeast Research and Demonstration farm. ISRF02-13. Iowa State Univ., Ames, IA. (pdf)
• Mallarino, A.P., J. Sawyer, J. Klatt, R. Kanwar, C. Pederson, J. Baker, and K. Pecinovsky. 2003. Fertilizer and swine manure management systems: impacts on agronomic and environmental soil phosphorus tests and on phosphorus loss with subsurface drainage. Annual progress reports-2002. Northeast Research and Demonstration farm. ISRF02-13. Iowa State Univ., Ames, IA. (pdf)
• Sawyer, J.E., J.P. Lundvall, S. Rakshit, and A.P. Mallarino. 2003. Liquid swine manure nitrogen utilization for crop production. p. 95-112. In Proc. 15th Annual Integrated Crop Manag. Conf., Ames, IA. 3-4 Dec. 2003. Iowa State Univ., Ames, IA. (pdf)
• Wittry, D.J., and A.P. Mallarino. 2002. Use of variable-rate technology for agronomic and environmental phosphorus-based liquid swine manure management. In P.C. Robert et al. (ed.). Sixth Intl. Conf. on Site-Specific Management for Agricultural Systems. Proceedings. CD-ROM. July14-17. Minneapolis, MN. ASA, CSSA, SSSA, Madison, WI. (pdf)
• Sawyer, J.E. 2001. Nitrogen fertilizer and swine manure application to soybean. p. 33-44. In Proc. 13th Annual Integrated Crop Manag. Conf., Ames, IA. 5-6 Dec. 2001. Iowa State Univ., Ames, IA. (pdf)

Presentations

• Manure Nitrogen Availability and Supply. Sawyer, J. 2011. Presentation for the Commercial Manure Applicator Program. Iowa State Univ. Ext.
• Swine manure nutrient utilization project. Sawyer, J., A. Mallarino, and J. Lundvall. 2004. Presented at the Agriculture and the Environment Conf. 1-2 March. Iowa State Univ., Ames, IA (pdf)

Links

• Iowa Manure Management Action Group
• Manure Applicator Certification Program
• Agricultural Waste Management (Iowa State University)