Verification of nutrient transport modelling of a bison feedlot

KIZIL Ü., Lindley J. A., Padmanabhan G.

BIOSYSTEMS ENGINEERING, vol.94, no.3, pp.453-460, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 94 Issue: 3
  • Publication Date: 2006
  • Doi Number: 10.1016/j.biosystemseng.2006.03.010
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.453-460
  • Çanakkale Onsekiz Mart University Affiliated: No


Runoff from an unpaved bison feedlot was measured for 2 yr. The objective were to determine a runoff curve number, develop a relationship between rainfall and runoff, and evaluate the equations in the Erosion-Productivity Impact Calculator (EPIC) and Agricultural Non-point Source (AGNPS) models for the prediction of runoff nutrient contents from a bison feedlot. A runoff curve number of 93 was determined using rainfall/runoff data. A simple regression equation was developed to estimate runoff as a linear function of rainfall. Organic-N and P were predicted with high correlation coefficients of 0.89 and 0.81, respectively. Results showed that use of EPIC and AGNPS model equations is a promising method for runoff quality/quantity estimation. (c) 2006 IAgrE. All rights reserved Published by Elsevier Ltd.