Solid urea fertilizer
AssigneeKoch Agronomic Services, LLC
InventorAllen R. Sutton
Life of this patent
Estimating the term…
Abstract
A solid urea fertilizer prepared by mixing a solid, flowable, urea formaldehyde polymer with a urea source, such as molten or solid urea to form a fertilizer that has favorable crush strength characteristics, low biuret content, and/or desirable storage and handling properties. The urea fertilizer may contain additionally, an aqueous urea formaldehyde solution or mixture. Optionally, the fertilizer may contain a urease inhibitor and/or a nitrification inhibitor.
Claims17
A fertilizer comprising a urea source and treated polymethyl urea resin particles that are in a flowable form, wherein the polymethyl urea resin particles are treated so as to comprise a urease inhibitor and a nitrification inhibitor.
A composition comprising treated, flowable particles of a polymethyl urea resin, wherein the particles are treated so as to comprise a urease inhibitor and a nitrification inhibitor.
A method of preparing a fertilizer composition comprising mixing treated, flowable particles of a polymethyl urea resin with a urea source, wherein the particles of the polymethyl urea resin are treated so as to comprise a urease inhibitor and a nitrification inhibitor.
Dependencies are inferred from the claim text.