Solid, water-soluble micronutrient mixtures, their preparation a

Details Solid, water-soluble micronutrient mixtures, their preparation a Solid, water-soluble micronutrient mixtures, their preparation a

1982-09-09

1985-03-19

Lander, Ferris H.

Chemistry: fertilizers

Processes and products

Organic material-containing

71 27, 71 6408, 71DIG2, C05G 300

Patent

active

045057320

ABSTRACT:
A fertilizer concentrate composition comprising (1) 80-90%, by weight, of water-soluble salts of plant micronutrients, 10-18 mole percent of said salts being in complexed form, and (2) 0.7-1.75%, by weight, of a stabilizer comprising a solid, water-soluble polymer in powder form having a particle size such that 80-90% by weight, of said particles have a diameter <0.1 mm and less than 0.5 percent, by weight, of said particles have a diameter >0.5 mm, (3) balance, complexing agent for said micronutrients, with the proviso that the amount of complexing agent is chosen so that 10-18 mole percent of the micronutrients are complexed and, optionally, (4) 0.05-0.5%, by weight, of a surfactant, provides a storage-stable, readily soluble micronutrient concentrate usable especially in fertilizing crops by leaf dressing.

REFERENCES:
patent: 4012220 (1977-03-01), Szalay et al.
patent: 4036788 (1977-07-01), Steckler
patent: 4163657 (1979-08-01), Koslow et al.

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