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Agronomy Journal Abstract -

Evaluation of Residual Nitrogen in Soils1


This article in AJ

  1. Vol. 50 No. 5, p. 255-259
    Received: Oct 2, 1957

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  1. W. C. White,
  2. Lloyd Dumenil and
  3. John Pesek2



Effects of residual soil nitrogen on spring oats were estimated to be equivalent to quantities as large as 49% of the applications made to corn the preceding year. Nitrogen yield by oats served more satisfactorily than grain or dry matter yields for evaluating effects of residual nitrogen. Residual nitrogen estimated from linear regressions of nitrogen yield on nitrogen applied to oats appeared closely related to quantities of soil nitrate nitrogen, most of which was in the 6- to 21-inch soil layer.

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