• Extension Publications
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Extension Publications (pdf)

• PM 1811 Managing Manure Nutrient 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 is meant by crop availability of manure nutrients? (1/2008) (pdf)
• Is manure the same as fertilizer as a crop nutrient resource? (3/2007) (pdf)
• 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 (Spring2001)
• Take credit for manure application to offset fertilizer costs (Spring 2001)
• Phosphorus and swine feeding (4/2001)

Conference Proceedings and Reports

• 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)
• Mallarino, A.P., A. Atia, and R. Killorn. 1998. Bioavailability of phosphorus in manured soils. p. 611-616. In Animal Production Systems and the Environment International Conference. Proceedings Vol. II. July 19-22. Des Moines, Iowa.
• Mallarino, A.P., and A. Atia. 1998. Manure phosphorus in soils: how should we approach upper limits? p.23-30. In 18th. Annual Crop-Pest management short course (CPM). Proceedings. Nov. 23-24, 1998. Univ. of Minnesota. St. Paul.
• Hansen, D.J., A.M. Blackmer, and A.P. Mallarino. 1998. Optimizing nitrogen management in manured cornfields. p.121-126. In North Central Extension-Industry Soil Fertility Conference. Proceedings. Vol. 14. St. Louis, MO.

Abstracts

• Haq, M.U., and A.P. Mallarino. 2004. Runoff phosphorus loss as affected by tillage and swine manure management in corn-soybean production systems. Agron. Abs. CD-ROM. ASA-CSSA-SSSA. Madison, WI.
• Allen, B.L., A.P. Mallarino, J.L. Baker, J.G. Klatt, M.U. Haq, and C.H. Pederson. 2003. Swine manure rate and tillage effects on phosphorus loss with surface runoff. Agron. Abs. CD-ROM. ASA-CSSA-SSSA. Madison, WI.
• Lundvall, J.P., J.E. Sawyer, S. Rakshit, A.P. Mallarino, and D.W. Barker. 2003. Liquid swine manure impact on first-year soybean and residual year corn. In Annual Meetings Abstract CD-ROM, ASA, Madison, WI.
• Barbazan, M.M., A.P. Mallarino, and D.J. Wittry. 2003. Impact of liquid swine manure on soil-test phosphorus as affected by uniform and variable-rate application in corn-soybean rotations. Agron. Abs. CD-ROM. ASA-CSSA-SSSA. Madison, WI.
• Rakshit, S., J.E. Sawyer, J.P. Lundvall, D.W. Barker, and A.P. Mallarino. 2002. Liquid swine manure nitrogen utilization project. In Annual Meetings Abstract CD-ROM, ASA, Madison, WI.
• Sawyer, J.E., E.R. Loria, D.W. Barker, and J.C. Lorimor. 2002. Use of anaerobic digested swine manure in corn production. In Annual Meetings Abstract CD-ROM, ASA, Madison, WI.
• Loria, E.R., J.E. Sawyer, and J.C. Lorimor. 2002. Comparison of phosphorus and nitrogen from raw and anaerobic digested swine manure. In Annual Meetings Abstract CD-ROM, ASA, Madison, WI.
• Barbazan, M., A. Mallarino, and J. Sawyer. 2002. Liquid swine manure phosphorus utilization in corn-soybean production. In Annual Meetings Abstract CD-ROM, ASA, Madison, WI.
• Barbazan, M.M., A.P. Mallarino, A. Atia, and J.E. Sawyer. 2001. Evaluation of phosphorus availability in manured soils by soil testing and plant analysis. In Annual Meetings Abstract CD-ROM, ASA, Madison, WI.
• Klatt*, J.G., and A.P. Mallarino. 2000. Soil P testing in manured soils in relation to P loss to water supplies. p. 367. In Agronomy Abstracts, ASA, Madison, WI.
• Wittry*, D.J., A.P. Mallarino, M. Bermudez*, and A. Bianchini*. 2000. Soil P and soybean response to variable rate manure application based on soil test P. p. 366. In Agronomy Abstracts, ASA, Madison, WI.
• Atia*, Atta, and A.P. Mallarino. 1998. Evaluation of phosphorus availability in manured soils by soil and plant analysis. p. 352. In Agronomy Abstracts, ASA, Madison, WI.
• Hansen, D.J, A.M. Blackmer, and A.P. Mallarino. 1996. Determining optimal rates of N fertilization for manured cornfields. p. 319. In Agronomy Abstracts, ASA, Madison, WI.

Presentations

• 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

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