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This article in SSSAJ

  1. Vol. 38 No. 2, p. 289-293
     
    Received: Aug 6, 1973
    Published: Mar, 1974


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doi:10.2136/sssaj1974.03615995003800020024x

Nitrogen Transformations in Soil During Leaching; I. Theoretical Considerations1

  1. C. Misra,
  2. D. R. Nielsen and
  3. J. W. Biggar2

Abstract

Abstract

Transport equations describing the movement and simultaneous oxidation of NH4+ to NO3- and reduction of NO3- to N2 by microbial and/or chemical means were set up and solved both for leaching of a pulse and for a continuous application of NH4+ and/or NO3- salt at the soil surface. Both ionic adsorption owing to cation exchange and microbiological transformations have been considered and distinguished as reversible and irreversible processes, respectively. The possibilities of the model extended to a sequential transformation during transport of more than two nitrogen species have been examined.

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