175 Organic P in Soil and Water Systems: Quantification, Bioavailability, Fate, and Transport

Oral Session
SSSA Division: Soils & Environmental Quality
Historically, research into agronomic and environmental aspects of phosphorus (P) has focused on inorganic P.  However, soil organic P (Po) dynamics are also important for sustainable crop production and surface water quality. Research is needed to better identify and quantify Po forms in soil-water systems, as this knowledge could reduce unneeded P inputs to cropland, decrease in P loss risk, and increase P use efficiency.  
This session solicits oral papers that address various aspects of Po in soil and aquatic systems, including but not limited to its fate, transport, reactivity, bioavailability, speciation, risk assessment, and role in crop nutrition/aquatic ecology.

Soils & Environmental Quality

Monday, November 3, 2014: 1:00 PM-4:00 PM
Long Beach Convention Center, Room 202C

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Eric O. Young and Barbara J. Cade-Menun
Barbara J. Cade-Menun
1:00 PM
Introductory Remarks
1:05 PM
Organic Phosphorus Biogeochemistry in Soil and Water Systems.
Barbara J. Cade-Menun, Agriculture & Agri-Food Canada
1:25 PM
Partition and Fate of Phosphorus in Two Ohio Soils.
James J. Hoorman, Ohio State University; Khandakar R. Islam, Ohio State University
1:40 PM
Solution 31P NMR Spectroscopy of Soil P Forms from Organic and Conventional Dairy Farms.
Kim Schneider, University of Guelph; Barbara J. Cade-Menun, Agriculture & Agri-Food Canada; Paul R Voroney, University of Guelph; Derek H. Lynch, Dalhousie University
1:55 PM
Distribution of Phytate Mineralizing Bacteria Along a Small Creek in the Chesapeake Bay Watershed.
Lisa M Stout, University of Delaware; Deb P. Jaisi, University of Delaware
2:10 PM
Changes in Grassland Soil P Forms Under a Zero P Application Regime.
Barbara J. Cade-Menun, Agriculture & Agri-Food Canada; Donnacha Doody, Agri-Food and Biosceinces Institute; Catherine Watson, Agri-Food and Biosciences Institute (AFBI); Corey W. Liu, Stanford Magnetic Resonance Laboratory
2:25 PM
2:40 PM
Phosphorus Speciation and Concentration Attenuation in Waterways from Agricultural Fields to Indian River Lagoon.
Zhigang Li, University of Florida-IFAS; Suli Li, Guangxi University; Zhenli He, University of Florida; Yongshan Wan, South Florida Water Management District; Xiaoe Yang, ZheJiang University; Peter J. Stoffella, Soil and Water Science Department-University of Florida
3:10 PM
3:25 PM
Phosphorus Desorption Characteristics and Relationships of U.S. Soils.
Rebecca A. Puta, University of Nebraska - Lincoln; Candiss O. Williams, USDA-NRCS; Michael P. Robotham, USDA-NRCS; Mark S. Kuzila, University of Nebraska - Lincoln; Larry T. West, USDA-NRCS; Christopher W Smith, USDA-NRCS
3:40 PM
3:55 PM
Concluding Remarks
4:00 PM