Slow release nitrogen root treatment
AssigneeGeorgia-Pacific Resins, Inc.
InventorsStacey L. Wertz, Kurt Gabrielson, Robbie Kelly, Paul Baxter, James Knight, James Wright, Charles R. Davis
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Abstract
A method for treating a seedling by dipping the roots of the seedling into a composition containing a slow release, particulate urea-formaldehyde polymer, which is useful as a fertilizer for enhancing the extended delivery of nitrogen needed for plant development and growth and to the composition useful as the root dip, or as a soil drench.
Claims17
A method for treating a seedling to provide post-planting growth and survival enhancement which comprises exposing roots of the seedling to a particulate urea-formaldehyde polymer either by adhering the particulate urea-formaldehyde polymer on the roots of the seedling, or by adding the particulate urea-formaldehyde polymer to soil in which the seedling is planted, wherein the particulate urea-formaldehyde polymer is made by acidifying a aqueous methylol urea solution, and wherein the aqueous methylol urea solution either contains a dispersing agent or is subjected to a high shear condition during the acidifying, to form an aqueous dispersion of insoluble urea-formaldehyde polymer particles.
An aqueous root dip composition suitable for treating a seedling to provide post-planting growth enhancement which comprises an aqueous dispersion of a particulate urea-formaldehyde polymer containing an adhesive binder, wherein the particulate urea-formaldehyde polymer is made by acidifying a aqueous methylol urea solution, and wherein the aqueous methylol urea solution either contains a dispersing agent or is subjected to a high shear condition during the acidifying, to form an aqueous dispersion of insoluble urea-formaldehyde polymer particles.
A composition for supporting the growth of plants comprising a mixture of a soil component and a particulate urea-formaldehyde polymer made by acidifying a aqueous methylol urea solution, wherein the aqueous methylol urea solution either contains a dispersing agent or is subjected to a high shear condition during the acidifying, to form an aqueous dispersion of insoluble urea-formaldehyde polymer particles and drying the aqueous dispersion to recover the urea-formaldehyde polymer particles.
Dependencies are inferred from the claim text.