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Agronomy Journal Abstract -

Plant Phenols in Flue-Cured Tobaccos Fertilized at Different Rates1


This article in AJ

  1. Vol. 62 No. 3, p. 415-417
    Received: Nov 15, 1969

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  1. R. A. Andersen2,
  2. J. F. Chaplin3,
  3. R. E. Currin4 and
  4. Z. T. Ford5



Ten tobacco varieties were subjected during growth to three rates each of N, P and K fertilizer, flue-cured and analyzed for total soluble plant phenols. A small variation for total phenols occurred among varieties averaged over the three fertilizer rates (5.27–6.04%). There was a 15 and 22% relative decrease in phenols at the intermediate (89.6 kg/ha) and high (134.4 kg/ha) N rate, respectively, compared with the lowest rate of N application (44.8 kg/ha). Phosphorus also affected phenol levels in a similar manner, but to a lesser extent. A significant nitrogen with phosphorus interaction was obtained. Little variation was observed in phenols due to increase in potash.

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