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Published online 3 April 2006
Published in J Environ Qual 35:806-814 (2006)
DOI: 10.2134/jeq2005.0178
© 2006 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
677 S. Segoe Rd., Madison, WI 53711 USA
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Determining Phosphorus Release Rates to Runoff from Selected Alberta Soils Using Laboratory Rainfall Simulation

Charles R. Wrighta,*, Mohamed Amranib, Muhammad A. Akbara, Danial J. Heaneyc and Douwe S. Vanderweld

a Alberta Agriculture, Food and Rural Development, 206 J.G. O'Donoghue 7000-113th Street, Edmonton, AB, Canada T6H 5T6
b Environment Canada, 105 McGill Street, 7th Floor, Montreal, QC, Canada H2Y 2E7
c Norwest Labs, Edmonton, AB, Canada
d City of Edmonton, Edmonton, AB, Canada


Figure 1
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  		Fig. 1. Runoff flow rates with time for Soils 4, 9, 19, and 22.

 

Figure 2
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  		Fig. 2. Effect of soil organic matter content (OM) on runoff volumes for the T30 and Teq runoff intervals.

 

Figure 3
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  		Fig. 3. Instantaneous dissolved inorganic phosphorus (DIP) concentrations in runoff versus time for Soils 4, 9, 19, and 22.

 

Figure 4
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  		Fig. 4. Instantaneous dissolved inorganic phosphorus (DIP) flux in runoff versus time for Soils 4, 9, 19, and 22.

 

Figure 5
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  		Fig. 5. Relationships of dissolved inorganic phosphorus–flow-weighted mean concentration (DIP–FWMC) and soil test phosphorus (STP) from the six extraction methods for the first 30 min (T30) and the equilibrium (Teq) runoff intervals (n = 38).

 




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The SCI Journals Agronomy Journal Crop Science
Journal of Natural Resources
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Soil Science Society of America Journal Journal of Plant Registrations The Plant Genome
Copyright © 2006 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.