Use of the EPIC model to predict runoff transport of surface-applied inorganic fertilizer and poultry manure constituents

Edwards, D. R., Benson, V. W., Williams, J. R., Daniel, T. C., Lemunyon, J. and Gilbert, R. G. (1994) Use of the EPIC model to predict runoff transport of surface-applied inorganic fertilizer and poultry manure constituents. Transactions of the ASAE, 37 2: 403-409. doi:10.13031/2013.28091

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Author Edwards, D. R.
Benson, V. W.
Williams, J. R.
Daniel, T. C.
Lemunyon, J.
Gilbert, R. G.
Title Use of the EPIC model to predict runoff transport of surface-applied inorganic fertilizer and poultry manure constituents
Journal name Transactions of the ASAE   Check publisher's open access policy
ISSN 0001-2351
Publication date 1994-03-01
Sub-type Article (original research)
DOI 10.13031/2013.28091
Open Access Status File (Publisher version)
Volume 37
Issue 2
Start page 403
End page 409
Total pages 7
Place of publication St Joseph, MI, United States
Publisher American Society of Agricultural and Biological Engineers
Language eng
Abstract The Erosion Productivity Impact Calculator (EPIC) model was applied to four fields established in 'tall' fescue (Festuca arundinacea Schreb.) in northwestern Arkansas to predict runoff and transport of nitrogen, phosphorus, and sediment. Fertilizer form varied among the fields with two receiving inorganic fertilizer, one receiving poultry (Gallus gallus domesticus) litter, and one receiving poultry manure. Soil and grazing parameters also differed among fields. Runoff and nutrient/sediment transport observed over 20 months were compared to EPIC predictions generated without calibration. Significant correlation between event predictions and observations were found in half the cases. There was significant correlation between observed and predicted calendar year total transport for all outputs except nitrate-nitrogen. The findings indicate that EPIC can accurately reflect runoff quality trends when executed without calibration for pasture fields in northwestern Arkansas.
Keyword Water quality
Modeling
Pasture
Poultry
Manure
Litter
Receiving animal wastes
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Nutrition and Food Sciences Publications
 
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Created: Tue, 08 Mar 2011, 01:41:24 EST