Water-Quality Effects of Incorporating Poultry Litter into Perennial Grassland Soils
D. H. Pote*,a,
W. L. Kingeryb,
G. E. Aikena,
F. X. Hanb,
P. A. Moore, Jr.d and
K. Buddingtonc
a USDA Agricultural Research Service, Dale Bumpers Small Farms Research Center, 6883 South State Highway 23, Booneville, AR 72927
b Department of Plant and Soil Sciences, P.O. Box 9555, Mississippi State, MS 39762
c Department of Biological Sciences, P.O. Box GY, Mississippi State, MS 39762
d USDA Agricultural Research Service, PPPSRU, 0-303 POSC, University of Arkansas, Fayetteville, AR 72701

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Fig. 1. Effect of poultry litter application method on dissolved phosphate phosphorus (DP) in pasture runoff. Within each runoff event, bars with the same letter indicate treatment results that are not significantly different ( = 0.05).
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Fig. 2. Effect of poultry litter application method on total Kjeldahl nitrogen (TKN) in pasture runoff. Within each runoff event, bars with the same letter indicate treatment results that are not significantly different ( = 0.05).
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Fig. 3. Effect of poultry litter application method on NH4N in pasture runoff. Within each runoff event, bars with the same letter indicate treatment results that are not significantly different ( = 0.05).
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Fig. 4. Effect of poultry litter application method on dissolved organic carbon (DOC) in pasture runoff. Within each runoff event, bars with the same letter indicate treatment results that are not significantly different ( = 0.05).
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Fig. 5. Effect of poultry litter application method on copper in pasture runoff. Within each runoff event, bars with the same letter indicate treatment results that are not significantly different ( = 0.05).
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Copyright © 2003 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.