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This article in AJ

  1. Vol. 57 No. 2, p. 169-173
    Received: July 27, 1964

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Seasonal Pattern of Fructosan in Orchardgrass Stubble as Influenced by Nitrogen and Harvest Management1

  1. W. G. Colby,
  2. Mack Drake,
  3. D. L. Field and
  4. G. Kreowski2



Soluble carbohydrate in orchardgrass, as indicated by fructosan, decreased rapidly during the period of maximum vegetative development—maximum stem elongation and seed head development—indicating that this was a critical period for management. In each of 4 cuttings, fructosan was reduced by increments of N. Large N applications render orchardgrass susceptible to injury, but the combination of high temperature and low soil moisture cause it.

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