Slow release fertilizers and processes for preparing same

Details Slow release fertilizers and processes for preparing same Slow release fertilizers and processes for preparing same

1976-09-30

1978-03-28

Hart, Charles N.

Chemistry: fertilizers

Processes and products

Organic material-containing

71 34, 71 63, 71 64E, 71 64F, 427212, C05C 900

Patent

active

040812642

ABSTRACT:
Described are encapsulated slow release fertilizers prepared by providing a fertilizer substrate, spraying molten sulfur thereon; encapsulating the sulfur-coated fertilizer by solvent deposition of bitumen and then powder coating the bitumen- and sulfur-coated fertilizer with a finely ground, dry, mineral powder which reduces the tackiness of the combined coating.

REFERENCES:
patent: 3206297 (1965-09-01), O'Connor
patent: 3276857 (1966-10-01), Stansbury et al.
patent: 3295950 (1967-01-01), Blouin et al.
patent: 3576613 (1971-04-01), Fleming
patent: 3903333 (1975-09-01), Shirley, Jr. et al.

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