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Effect of the Zinc Chelate of Ethylenediaminetetraacetic Acid on Plant Uptake of Zinc and Other Heavy Metals
Author(s) -
Butler P. C.,
Bray Roger H.
Publication year - 1956
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/sssaj1956.03615995002000030014x
Subject(s) - zinc , ethylenediaminetetraacetic acid , loam , chemistry , chelation , manganese , copper , cadmium , environmental chemistry , soil water , nuclear chemistry , inorganic chemistry , geology , soil science , organic chemistry
In a study of the effect of chelated zinc on plant composition, the addition of the zinc chelate of ethylenediaminetetraacetic acid (EDTA) to the soil at planting time gave results varying with the clay content of the soil. Both zinc and copper increased in the plants grown on a sandy soil. Manganese and iron contents were unaffected. No increase in zinc or copper contents of the plants occurred on a heavy silt loam soil, although as high as 50 ppm. of zinc was added. The added zinc disappeared from the water soluble and exchangeable forms in the latter but some buildup of exchangeable zinc occurred in the sandy soil. A large proportion of the added zinc was recovered by acid extraction. Laboratory studies indicated that the heavy soil rapidly takes the zinc away from the EDTA.