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Plant Phenols in Flue‐Cured Tobaccos Fertilized at Different Rates 1
Author(s) -
Andersen R. A.,
Chaplin J. F.,
Currin R. E.,
Ford Z. T.
Publication year - 1970
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.2134/agronj1970.00021962006200030032x
Subject(s) - potash , phenols , fertilizer , phosphorus , phenol , chemistry , curing of tobacco , nitrogen , agronomy , horticulture , zoology , biology , organic chemistry
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.