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American Potato Journal

, Volume 42, Issue 4, pp 90–96 | Cite as

Increased tuber yield of Pontiac potatoes resulting from the foliar application 2,4-D—Mineral dusts

  • D. J. Wort
Article

Summary

The foliar application of a 2,4-D-mineral dust containing 1% 2,4-D and compounds of Cu, B, Mn, Zn, Fe, and sulfur, at the rate of 6 lb per acre to 23-day-old Pontiac potato plants grown in sandy loam and clay loam soils resulted in tuber yields 15.1% and 11.7% over those of untreated plants in the two plots. A dust containing only minerals, produced no significant increase.

The use of dusts containing 1% and 5% 2,4-D alone, or with minerals, and a dust containing minerals only, at 6 lb per acre, at various times during the first 34 days of growth of Pontiac potato plants showed that the greatest yield resulted from the application of the dust containing 1% 2,4-D with minerals to plants 23 days old and again when 34 days old. The yield was 20% greater than tuber yield by untreated plants. A 2,4-D-nutrient dust containing 5% 2,4-D, applied at 6 lb per acre at these two ages resulted in a 12% increase in tuber yield.

Keywords

Sandy Loam Potato Plant AMERICAN Potato Journal Tuber Yield Foliar Application 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer 1965

Authors and Affiliations

  • D. J. Wort
    • 1
  1. 1.Department of BotanyUniversity of British ColumbiaVancouver

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