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Soil Science Society of America Journal Abstract -

Fate of Urea Fertilizer Added to a Boreal Forest Pinus banksiana Lamb. Stand1

 

This article in SSSAJ

  1. Vol. 41 No. 2, p. 441-448
     
    Received: July 13, 1976
    Accepted: Dec 6, 1976


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doi:10.2136/sssaj1977.03615995004100020055x
  1. I. K. Morrison and
  2. N. W. Foster2

Abstract

Abstract

Distribution of N in various components of a 45-year-old, relatively pure Pinus banksiana (jack pine) ecosystem on a sandy outwash site, was estimated at various times during the first three growing seasons following fertilization with 300-kg urea-N/ha. At the end of the third growing season, N, equivalent to that applied, was distributed as follows: in trees, 23%, in ground vegetation, 1%, in soil organic layers, 26%; and in mineral soil, 10%. An estimated 30% was lost into the atmosphere through volatilization, while the remaining 10% was unaccounted for. Negligible nitrification suggested little likelihood of ground-water contamination following urea fertilization.

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