Chemistry: fertilizers – Processes and products – Organic material-containing
Patent
1976-04-05
1977-08-16
Wyse, Thomas G.
Chemistry: fertilizers
Processes and products
Organic material-containing
71 64DB, 71 64E, 71 64F, 428403, C05B 1500, C05C 900
Patent
active
040423662
ABSTRACT:
A controlled release particulate fertilizer composition containing nitrogen in a form which is slowly released and a water soluble solid additive, such as a phosphorus or potassium nutrient salt, in a form which is quickly released comprising a core of a water soluble nitrogen nutrient source, a coating of sulfur surrounding the core, and a coating surrounding the sulfur coating of an inert water-insoluble material such as wax. The inert coating comprises an inner portion of the inert coating alone and an outer portion containing the salt or other water soluble additive.
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Fersch Kenneth Eugene
Stearns Wayne Eugene
Holt H. J.
Raden J. B.
The O.M. Scott & Sons Company
Therkorn Ernest G.
Wyse Thomas G.
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