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This article in JEQ

  1. Vol. 3 No. 4, p. 405-406
     
    Received: Jan 21, 1974
    Published: Oct, 1974


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doi:10.2134/jeq1974.00472425000300040023x

Nitrogen-15 Variations in Fertilizer Nitrogen1

  1. H. D. Freyer and
  2. A. I. M. Aly2

Abstract

Abstract

Nitrogen-15 concentrations of some commonly used nitrogen fertilizers are measured. Ammonium-nitrogen has lower and nitrate-nitrogen has higher 15N concentrations than atmospheric nitrogen. The mean difference between both is about 4 δ 15N.

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