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This article in AJ

  1. Vol. 55 No. 2, p. 155-158
    Received: Aug 6, 1962

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Availability of Nitrogen Contained in Certain Condensation Products of Reaction of Urea with Formaldehyde1

  1. F. Leslie Long and
  2. G. M. Volk2



Nitrogen uptake distribution from sources containing up to 62% of the N as water-insoluble from ureaform was not appreciably improved over watersoluble sources of N. More favorable N uptake distribution was obtained when the water-insoluble N was used alone, especially a product made with U/F mole ratio of 1.50, when applied at 1,000 pounds N per acre. Total yield was approximately doubled and total N recovery tripled as compared to a 100-pound application of soluble N.

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