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Agronomy Journal Abstract -

Residual Nitrogen from NH4NO3 Fertilizer and from Alfalfa Plowed under1


This article in AJ

  1. Vol. 55 No. 3, p. 231-235

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  1. Louis C. Boawn,
  2. J. L. Nelson and
  3. Carl L. Crawford2



Residual N from NH4NO3 averaged 44% of the original application after 1 year but was insignificant after 2 years. For a 5-year period, N uptake from the alfalfa area exceeded that from virgin area by 341 pounds per acre.

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