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Chelating Agent and Plant Nutrient Interactions Affecting the Iron Nutrition of Soybeans
Author(s) -
Tiffin L. O.,
Brown J. C.,
Holmes R. S.
Publication year - 1960
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/sssaj1960.03615995002400020016x
Subject(s) - chlorosis , chelation , nutrient , phosphorus , chemistry , chromosomal translocation , absorption (acoustics) , agronomy , inorganic chemistry , biology , biochemistry , materials science , organic chemistry , gene , composite material
Studies were made to evaluate the effect of absorbed chelating agent on the subsequent absorption‐translocation of iron in soybeans. Iron was separated from the chelating agent by using split‐medium and split‐root techniques. Chelating agents did have some effect on the absorption of radioiron from Millville soil and the translocation of foliar‐applied radioiron. These effects were not great enough to correct iron chlorosis. Phosphorus in the nutrient medium or within the plant depressed the uptake and translocation of iron by the plant. This effect of phosphorus on iron could not be offset by use of chelating agents. The primary role of iron chelates in plant nutrition appears to be that of making iron soluble and available to the root for absorption.