|
(515) 294-1923
|
Nutrients & Water Quality
Extension Publications
(pdf)
Newsletter Articles
Conference
Proceedings and Reports
- Sawyer, J.E., and G.W. Randall. 2008. Nitrogen rates, p. 59-71. In G. Laing (ed.) Final Report: Gulf Hypoxia and Local Water Quality Concerns Workshop. Upper Mississippi Sub-basin Hypoxia Nutrient Committee, Ames, IA. 26-28 Sep. 2005. ASABE, St. Joseph, MI. The complete proceedings of the workshop are available at www.umrshnc.org. (pdf)
- Randall, G.W., and J.E. Sawyer. 2008. Nitrogen application timing, forms and additives. p. 73-85. In G. Laing (ed.) Final Report: Gulf Hypoxia and Local Water Quality Concerns Workshop. Upper Mississippi Sub-basin Hypoxia Nutrient Committee, Ames, IA. 26-28 Sep. 2005. ASABE, St. Joseph, MI. The complete proceedings of the workshop are available at www.umrshnc.org. (pdf)
- Pedersen, P., J. Sawyer, D. Barker, D. Ruiz Diaz, and J. Stuart. 2008. Educating growers about living mulch systems for grain crop production. Final project report to the Iowa Department of Agriculture and Land Stewardship, Division of Soil Conservation, IFLM program. (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., and D. Wittry. Pilot implementation of an environmental phosphorus assessment tool for Iowa. Final project report to the Iowa Department of Natural Resources, 319 Program. (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)
- Mallarino, A.P., M.U. Haq, and K. Pecinovsky. 2005. Runoff phosphorus loss as affected by tillage, fertilizer, and swine manure phosphorus management in corn-soybean production systems. p. 46-47. In Annual progress reports-2004. Northeast research and demonstration farm. ISRF04-13. 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)
- Baker, J.L. 2004. Limitations of improved nitrogen management to reduce leaching and increase use efficiency. In Proc. Optimizing Nitrogen Management in Food and Energy Production and Environmental Protection, 2nd International Nitrogen Conf. on Science and Policy. The Scientific World 1(S2), 10-16. (pdf)
- Baker, J.L. 2004. In-field nutrient availability and balances, and potential implications on management systems to reduce losses. In Proc. Agriculture and the Environment Conf. 1-2 March. 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)
- Mallarino, A.P. 2003. Using the Iowa phosphorus index for agronomic and environmental management of fertilizer and manure phosphorus. p. 121-126. In The Integrated Crop Management Conf. Proceedings. Dec. 3-4, Ames, IA. Iowa State Univ. Extension. (pdf)
- Klatt, J.G., A.P. Mallarino, and B.L. Allen. 2002. Relationships between soil phosphorus and phosphorus in surface runoff and subsurface drainage. An overview of ongoing research. p. 183-189. In North-Central Extension-Industry Soil Fertility Conf. Proceedings. Vol. 18. Des Moines, 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)
- Mallarino, A.P., D. Wittry, and J. Klatt. 2001. Using the Iowa phosphorus index and variable-rate technology for effective agronomic and environmental phosphorus management. p. 151-158. In The Integrated Crop Management Conf. Proceedings. Dec. 5-6, 2001, Ames, IA. Iowa State Univ. Extension. (pdf)
Presentations
Links
top
|
