Premium
Ammonium and Chloride Influences on Growth Characteristics of Flue‐Cured Tobacco
Author(s) -
Skogley E. O.,
McCants C. B.
Publication year - 1963
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1963.03615995002700040013x
Subject(s) - ammonium , chemistry , chloride , ammonium chloride , curing of tobacco , zoology , horticulture , biology , organic chemistry
Studies under greenhouse conditions indicate that NH 4 was a major causal factor in the development of leaf malformations similar to those of tobacco grown on fumigated soils and fertilized with NH 4 ‐N. Chloride interacted with the form of N in its effect on leaf configuration, tending to increase the extent of abnormality when NH 4 was supplied but having little or no influence when NO 3 was supplied. Utilizing a system in which NH 4 , NO 3 , and Cl were supplied from resins, NH 4 , relative to NO 3 , was found to decrease the percentage Ca, K, and Mg and to increase the accumulation of NH 4 in the tissue. Chloride resulted in decreased NO 3 , P, and S accumulation in the leaf and interfered with the incorporation of soluble N into insoluble N compounds. Growth and accumulation of K, Ca, Mg, P, and N by plants supplied with NH 4 during a 21‐day period was < 30% of that of NO 3 ‐supplied plants. A study on the influence of NH 4 as the source of N relative to K deficiency indicated that less growth was obtained from a complete solution in which N was supplied as NH 4 than from one with K omitted but containing NO 3 ‐N.