Urea phosphite fertilizer
A new fertilizer comprising Urea Phosphite, which is made by reacting phosphorous acid with urea. Urea Phosphite is characterized by being a liquid produced in an unprocessed reaction, and by having phosphite as a phosphorus source and urea as a nitrogen source. The reaction product may be blended with an admix and spray dried, or dissolved in water.
1. A fertilizer comprising urea phosphite which has the effect of enhancing plant growth when applied to plant seed, plants, and/or soil in which plant seeds or plants are planted;
wherein the fertilizer is a liquid; and
wherein the urea phosphite is prepared by reacting a solid urea compound selected from urea and thiourea with a solid phosphorous acid compound at a temperature in the range of about 15° C. to about 140° C. without adding water, allowing a clear, colorless liquid to form from reacting said solids.
2. The fertilizer of claim 1 wherein the fertilizer further comprises an admix.
3. The fertilizer of claim 1 wherein the urea phosphite is prepared at room temperature.
4. The fertilizer of claim 1 wherein the urea and phosphorous acid compounds are reacted in a molar ratio of urea to phosphorous acid ranging from about 2:1 to about 1:2.
5. The fertilizer of claim 1 consisting essentially of urea phosphite and an admix wherein the fertilizer has phosphite as a phosphorous source and urea as a nitrogen source.
6. A method of applying the fertilizer of claim 1 as a liquid formulation comprising the steps:
(a) adding said composition to an aqueous medium to produce an aqueous mixture; and
(b) applying said aqueous mixture to the soil.
7. A method of applying the fertilizer of claim 1 as a liquid formulation comprising the steps:
(a) adding said composition to an aqueous medium to produce an aqueous mixture; and
(b) applying said aqueous mixture to plants.