USE OF UREA-FORMALDEHYDE FERTILIZERS WHEN SEEDING ON SUBSOIL HIGHWAY SLOPES

PREVIOUS INVESTIGATIONS ESTABLISHED THE SUPERIORITY OF UREA--FORMALDEHYDE TO OTHER COMMERCIAL CHEMICAL FERTILIZERS IN SLOWLY RELEASING NITROGEN OVER THE ENTIRE GROWNG SEASON, WHICH SHOULD PROVE ADVANTAGEOUS WHEN SEEDING ON SUBSOILS. COMPARATIVE TESTS WERE RUN WITH THIS AND OTHER CHEMICALS IN UNIFORM AMOUNTS OF 100 LB NITROGEN PER ACRE. IN EVERY CASE THE CHEMICAL FERTILIZERS PROVED SUPERIOR. TWO EXPLANATIONS ARE ADVANCED FOR THIS: (1) UREA--FORMALDEHYDE REQUIRES BACTERIA TO BREAK IT DOWN. AS THESE CUTS WERE FRESHLY MADE IN SUBSOIL, THEY MAY NOT HAVE HAD SUFFICIENT BACTERIA. (2) BY THE TIME TERMPERATURES BECAME FAVORABLE FOR THE RELEASE OF NITROGEN, MOISTURE BECAME CRITICAL ON THE SLOPES, THUS PREVENTING PRODUCTION.

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbroadsidedevcomrpts/1958/1958-003.pdf
• Supplemental Notes:
  • No 613, pp 15-20, 5 TAB, 2 REF. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Muller, E W
  • Porter, H
  • Brant, F H
• Discussers:
  • HAGEMEISTER, C
  • Slack, T
  • Grau
• Publication Date: 1958

Media Info

• Media Type: Digital/other
• Serial:
  • Highway Research Board Roadside Development Committee Reports
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Chemicals; Fertilizers; Formaldehyde; Planting; Slopes; Subsoil; Urea
• Subject Areas: Design; Environment; Highways;

Filing Info

• Accession Number: 00205111
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Nov 22 1971 12:00AM