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Effect of Phosphorus on Nitrate in Sugar Beet ( Beta vulgaris L.)
Author(s) -
Hills F. J.,
Sailsbery R. L.,
Ulrich Albert,
Sipitanos K. M.
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/agronj1970.00021962006200010029x
Subject(s) - sugar beet , sugar , dry matter , phosphorus , agronomy , nitrate , aeration , chemistry , absorption (acoustics) , nitrogen , horticulture , biology , food science , organic chemistry , physics , acoustics
Culture‐solution and field experiments indicate that P‐deficient sugar beets, particularly young plants, do not take up nitrate as well as plants adequately supplied with P. The increase in concentration of NO 3 ‐N in whole tops of young seedlings, cotyledons, or petioles of first true leaves with increased P supply is greater than can be accounted for by a concomitant decrease in percent dry‐matter of these plant parts. The decreased absorption of NO 3 by P‐deficient plants in aerated culture‐solution, with all roots exposed continuously to high concentrations of NO 3 indicates that the phenomenon reflects not merely increased root extension but a physiological aberration brought about by P‐deficiency.