Particulate nitrification inhibitor systems
OwnerTerrence Smithinventor
Life of this patent
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Abstract
Particulate compositions of reverted superphosphate substantially free of free acid containing at least one nitrification inhibitor and their methods of preparation and use
Claims34
A particulate composition for soil or pasture application in the form of particulate reverted super phosphate(s) carrying at least one nitrification inhibitor.
A composition of any one of the preceding claims where the nitrification inhibitor(s) is(are) particulate.
A composition of any one of the preceding claims wherein the nitrification inhibitor is from 1 to 35% w/w of the composition.
A composition of any one of the preceding claims wherein the nitrification inhibitor(s) is(are) DCD, ATS, or both.
A particulate composition of any one of the preceding claims in admixture with a fertiliser.
A method of potentiating and/or stabilising the nitrification inhibition of a nitrification inhibitor as deliverable granules which comprises or includes coupling the nitrification inhibitor prior to granulation with a reverted super phosphate or a system to provide a reverted superphosphate or a system of one or more superphosphate at least substantially free of free acid.
A synergistic or stable nitrification inhibiting particulate composition comprising or including an effective amount of a particulate reverted super phosphate carrying an effective amount of at least one nitrification inhibitor (eg, DCD).
In a fertiliser delivery system, particulate reverted super phosphate(s) carrying at least one nitrification inhibitor.
Granules provided by a SSP and basic material(s) carrying DCD in a pH environment above 4.
A particulate product that comprises or includes a single super phosphate and/or any reverted form thereof, one or more nitrification inhibitor, and one or more basic material(s) and has or has had included water.
A method of providing a granular nitrification inhibiting product, said method comprising or including
- mixing a superphosphate with both particulate DCD and basic material(s), and granulating the mixture.
A method of providing a particulate product which comprises or includes the steps of
- providing a thick slurry of single super phosphate, the nitrification inhibitor and water,
- adding basic material to the thick slurry, or vice versa,
- granulating the resulting reverted and/or reverting SSP mixture to provide said particulate product.
A method of providing a granular nitrification inhibiting product, said method comprising or including
- combining a superphosphate and particulate DCD with basic material(s) in the presence of water to provide a mixture, and
- granulating the mixture.
A granular product comprising
- 30 to 85% single super phosphate,
- 1 to 35% DCD and from
- 1 to 15% basic material(s).
Dependencies are inferred from the claim text.