Lecture 2: Site-specific prediction of P loss risk
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Discusses the application of SPSC to identify and predict P-loss risk from a soil, with examples comparing high P-impacted dairy soils with low P-impacted pasture soils and evaluating SPSC values in a watershed. Details prediction of P loss in a column experiment and Bh horizon studies to demonstrate the use of SPSC to identify locations that are at P loss risk.
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References
- Chakraborty, D., V.D. Nair, and W.G. Harris. 2012. Compositional differences between Alaquods and Paleudults affecting phosphorus sorption-desorption behavior. Soil Sci. 177:188–196.
- Chrysostome, M. 2005. Assessing the vertical movement of phosphorus in manure-impacted soils. PhD Dissertation. Soil and Water Science Department. University of Florida, Gainesville, FL 32611.
- Chrysostome, M., V.D. Nair, W.G. Harris, and R.D. Rhue. 2007a. Laboratory Validation of Soil Phosphorus Storage Capacity Predictions for Use in Risk Assessment. Soil Sci. Soc. Am. J. 71:1564-1569.
- Chrysostome, M., V.D. Nair, and W.G. Harris. 2007b. Phosphorus storage within spodic horizons of Florida Spodosols. ASA/CSSA/SSSA 2007 International Annual Meetings. CD Rom Publication.
- Nair, V.D., and W.G. Harris. 2004. A capacity factor as an alternative to soil test phosphorus in phosphorus risk assessment. New Zealand J. Agric. Res. 47:491-497.
- Nair, V.D, and W.G. Harris. 2014. Soil Phosphorus Storage Capacity for Environmental Risk Assessment. Advances in Agriculture. doi:10.1155/2014/723064.
- Showalter, J., V.D. Nair, D. Chakraborty, L. Liu, and Z. He. 2009. Identifying soil phosphorus sources and sinks within land-use systems of the Lake Okeechobee Basin. Southern Branch ASA Annual Meeting, Feb. 7-8, 2010. Orlando, FL.
