Chelated plant nutrients

Details Chelated plant nutrients Chelated plant nutrients

C - Chemistry, Metallurgy

05

D

71/16

C05D 9/02 (2006.01) C05F 11/02 (2006.01)

Patent

CA 1313592

CHELATED PLANT NUTRIENTS Abstract of the Invention Liquid micronutrient compositions are pre- pared by combining fulvic acid extracted from leonardite ore with a metal salt, a hydroxy acid and/or a hydroxy acid salt, and ammonia. The extract of leonardite ore is obtained by combination with a suitable chelant, while the subsequent combination with the metal salt and hydroxy acid/salt is accomplished in a heated aqueous medium. After allowing the desired metal chelates to form, the composition is combined with anhydrous ammonia, usually by sparging, to obtain a stable end product. The micronutrient compositions display enhanced plant uptake in both soil and foliar applications. Moreover, the compositions are particu- larly stable and suitable for application through drip irrigation systems. 11718-5/PA JMH011

562053

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