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AssigneeRichard Hartmann
InventorsRichard O. Hartmann, Timothy G. Holt, A. Ray Shirley, Jr.
Estimating the term…
Calcium cyanamide compositions and methods for their use are disclosed. The compositions and methods stabilize active ionic compositions comprising calcium cyanamide and enhance the effectiveness of calcium cyanamide alone or synergistically in combination with nitrogen containing materials such as urea and organics, for example, manures. The compositions and methods also facilitate controllable site directed delivery of the contents of the stabilized compositions. The compositions and methods are effective for fertilizing, soil amending, metal stabilizing and odor and organism inhibition. The compositions are stable, easily calibrated, and non-clogging for spray delivery to target sites.
A granular material, comprising:
A heterogeneous composition comprising a calcium cyanamide core and a urea shell where the calcium cyanamide core is from about 0.1 to about 40 percent by weight and the urea shell is from about 60 to about 99.9 percent by weight.
A method for making a heterogeneous granular composition, comprising:
An aqueous composition comprising greater than about 40 parts of water and about 10 parts of calcium cyanamide and urea combined, where the about 10 parts of calcium cyanamide and urea combined further comprises from about 0.1 to about 3 parts calcium cyanamide and from about 7 to about 9.9 parts urea.
Dependencies are inferred from the claim text.