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Published online 4 January 2008
Published in J Environ Qual 37:107-113 (2008)
DOI: 10.2134/jeq2006.0505
© 2008 American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America
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Right arrow Phosphorus
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Agricultural Drainage Ditches Mitigate Phosphorus Loads as a Function of Hydrological Variability

R. Krögera,*, M. M. Hollanda, M. T. Mooreb and C. M. Cooperb

a University of Mississippi Field Station and Center for Water and Wetland Resources, 15 CR 2078, Abbeville MS 38601
b USDA-ARS, National Sedimentation Lab., Oxford, MS 38655


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  		Fig. 1. Linear regression slopes for dissolved and particulate phosphorus nutrient reduction gradients over a 24-mo period (starting May 2004). In June 2004 (1 mo), fertilization and little rainfall occurred; in June 2005 (12–13 mo), fertilization and short, intense storm events occurred. Negative slopes indicate net sinks. Positive slopes indicate a net source

 




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