Phosphorus Losses from Grasslands Fertilized with Broiler Litter
EPIC Simulations
S. T. Piersona,
M. L. Cabrera*,b,
G. K. Evanyloa,
P. D. Schroederb,
D. E. Radcliffeb,
H. A. Kuykendalld,
V. W. Bensone,
J. R. Williamsf,
C. S. Hovelandb and
M. A. McCannc
a Dep. of Crop and Soil Environmental Sciences, Virginia Tech, Blacksburg, VA 24061
b Dep. of Crop and Soil Sciences, Univ. of Georgia, Athens, GA 30602
c Animal and Dairy Science Dep., Univ. of Georgia, Athens, GA 30602
d USDA Natural Resources Conservation Service, Athens, GA 30601
e Dep. of Agric. Economics, Univ. of Missouri-Columbia, Columbia, MO 65201
f Blackland Research Center, 808 East Blackland Rd., Temple, TX 76502

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Fig. 1. Observed versus EPIC-simulated event runoff volumes for individual plots.
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Fig. 2. Observed versus EPIC-simulated annual runoff from 1995 through 1998.
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Fig. 3. Observed versus EPIC-simulated event dissolved reactive phosphorus (DRP) loss for individual plots.
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Fig. 4. Observed versus EPIC-simulated annual dissolved reactive phosphorus (DRP) loss in runoff from 1995 through 1998.
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Copyright © 2001 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.