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Effects of adding chelated and non‐chelated copper and cobalt to a deficient soil on the content of these nutrients in clover and ryegrass
Author(s) -
McLaren Ronald G.,
Williams John G.
Publication year - 1981
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740320214
Subject(s) - copper , cobalt , chelation , manganese , chemistry , nutrient , agronomy , inorganic chemistry , biology , organic chemistry
In a pot trial carried out with a mineral‐deficient soil, applications of copper and cobalt significantly increased the content of these nutrients and manganese in ryegrass and clover. When used at the same rate of application of copper or cobalt, EDTA chelates were found to be no more effective than simple sulphates in increasing the copper and cobalt content. Low rates of application of copper‐EDTA produced insignificant increases in the copper content of herbage, and increases in cobalt content brought about by low application rates of cobalt‐EDTA were short lived. Incorporation of copper sulphate into the soil produced far larger increases in herbage copper concentration than copper sulphate applied to the soil surface.