C - Chemistry – Metallurgy – 05 – C
Patent
C - Chemistry, Metallurgy
05
C
71/23
C05C 7/00 (2006.01) C05C 3/00 (2006.01) C05C 9/00 (2006.01) C05G 3/08 (2006.01)
Patent
CA 2006751
An improved granular nitrogen fertilizer has been developed that increases first-year nitrogen uptake efficiency to plants. It is also a nitrogen fertilizer with features to minimize exposure to nitrogen loss. It is a nitrogen fertilizer consisting of urea, dicyandiamide, ammonium thiosulfate, and optionally a phosphate compound which is preferably an ammonium phosphate compound. This composition can contain a dye and/or various mineral micronutrients. This homogeneous granular fertilizer 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 homogeneous granular fertilizer composition is conveniently prepared by the addition of a dicyandiamide, and a solution of ammonium thiosulfate to molten urea. A phosphate compound and preferably ammonium polyphosphate, would be added along with these components.
Balser Richard L.
Sutton Allen R.
Weston Charles W.
Freeport Mcmoran Resources Partners Limited Partnership D/b/a Agrico Chemical Company
Smart & Biggar
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