Performance indices for surface N fertigation

D. Zerihun, C. A. Sanchez, K. L. Farrell-Poe, F. J. Adamsen, D. J. Hunsaker

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

The application of N fertilizers mixed with a surface irrigation stream (surface N fertigation) is widely practiced in the southwestern United States. Procedures for the optimal design and management of surface N fertigation systems are needed. The purpose of this work is to identify and define a set of performance indices that can be used to assess the relative merits of alternative design and management scenarios. Equations and solutions for quantifying the performance indices are proposed. Sample performance calculations are presented for a fertigation field experiment in which bromide ion was used as a tracer to simulate the movement of nitrate on the surface and through the soil profile.

Original languageEnglish (US)
Pages (from-to)173-183
Number of pages11
JournalJournal of Irrigation and Drainage Engineering
Volume129
Issue number3
DOIs
StatePublished - May 1 2003

Keywords

  • Agricultural engineering
  • Fertilizers
  • Nitrates
  • Soils

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Water Science and Technology
  • Agricultural and Biological Sciences (miscellaneous)

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