Chemistry: fertilizers – Processes and products – Organic material-containing
Patent
1988-02-08
1991-06-18
Lander, Ferris H.
Chemistry: fertilizers
Processes and products
Organic material-containing
71 30, 71 6408, 71 6409, 71902, C05C 900, C05G 300
Patent
active
050246895
ABSTRACT:
An improved aqueous nitrogen fertilizer has been developed that increases first-year nitrogen uptake efficiency to plants. It is also a nitrogen with features to minimize exposure to nitrogen loss. It is a nitrogen fertilizer consisting of urea, ammonium nitrate, dicyandiamide, ammonium thiosulfate, and a phosphate compound which is preferably an ammonium phosphate compound. This composition can contain a herbicide and/or various micro nutrients. This aqueous fertilizer solution can be applied to a field crop in a single application and is available to the growing plant throughout its growth and maturing cycle. The aqueous fertilizer composition is conveniently prepared by the addition of a slurry containing dicyandiamide, ammonium thiosulfate and the phosphate compound to a urea-ammonium nitrate solution wherein the nitrogen content has been adjusted to account for the nitrogen that will be supplied by the slurry.
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Balser Richard L.
Sutton Allen R.
Freeport McMoRan Resource Partners
Lander Ferris H.
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