Plant treatment composition

Patent metadata

Field	Value
Publication number	US-11629105-B2
Application number	US-201716305989-A
Country	US
Kind code	B2
Filing date	Jun 2, 2017
Priority date	Jun 2, 2016
Publication date	Apr 18, 2023
Grant date	Apr 18, 2023

Abstract

A plant treatment composition comprising: an aqueous phase comprising a plant nutrient; and an organic phase comprising a substituted urea or substituted thiourea compound, dissolved in an organic solvent; and an emulsifier; wherein the composition is in the form of an emulsion having droplets of the organic phase dispersed in the aqueous phase.

First claim

The invention claimed is:

1. A plant treatment composition comprising:
an aqueous phase comprising a plant nutrient;
an organic phase comprising a substituted urea compound, dissolved in an organic solvent; and
an emulsifier comprising an ethoxylated coco amine, where the ethoxylated chain length is in a range of 8 to 15 and/or an ethoxylated isotridecyl alcohol;
wherein the composition is at a pH of 1 to 4 and is in the form of an emulsion having droplets of the organic phase dispersed in the aqueous phase, the droplets having a size of less than 100 nm,
wherein the plant nutrient is water soluble and dissolved in the aqueous phase;
wherein the organic solvent has a solubility in water of less than 10 g/L and comprises or consists of capric acid dimethylamide,
wherein the substituted urea compound is selected from diphenyl urea, 2-nitro diphenyl urea, mono- or di-methyl diphenyl urea, mono- or di-ethyl diphenyl urea and 1,3-diethyl-1,3-diphenyl urea,
wherein the plant treatment composition comprises the substituted urea compound in a range of from 50 to 400 ppm, based on the total weight of the plant treatment composition,
wherein the composition further comprises from 4% to 12% w/w calcium and from 0.1% to 5% w/w zinc, based on the total weight of the plant treatment composition, and
wherein the emulsion remains homogeneous during two weeks of storage between −18 and +40° C.

2. The composition of claim 1 wherein the composition further comprises from 0.1% to 15% w/w magnesium, based on the total weight of the plant treatment composition.

3. The composition of claim 1 , wherein the composition further comprises from 0.1 to 5% w/w iron, based on the total weight of the plant treatment composition.

4. The composition of claim 1 , wherein the substituted urea compound is diphenyl urea (DPU).

5. The composition of claim 4 comprising from 4 to 6% w/w calcium in the aqueous phase based on the total weight of the composition and from 10 to 300 ppm diphenyl urea in the organic phase based on the total weight of the composition.

6. The composition of claim 4 comprising in the range of from 8 to 12% w/w calcium based on the total weight of the composition in the aqueous phase and in the range of from 10 to 300 ppm diphenyl urea based on the total weight of the composition in the organic phase.

7. The composition of claim 1 , wherein the emulsion is a microemulsion.

8. The composition of claim 1 , wherein the weight ratio of the aqueous phase to the organic phase is in a range of from 999:1 to 1:1 by weight.

9. A method of making the plant treatment composition according to claim 1 , the method comprising dissolving the substituted urea in the organic solvent to form the organic phase; and dispersing droplets of the organic phase in the aqueous phase comprising a plant nutrient.

10. A method of enhancing crop yield in a plant, the method comprising exposing the plant to a composition according to claim 1 .

11. The method of claim 10 wherein the plant is a soybean plant.

12. A method of treating a plant, the method comprising applying a composition according to claim 1 , or an aqueous dilution thereof, to the plant.

13. The method of claim 12 wherein the composition or dilution is applied as a foliar spray.

Assignees

• Croda Int Plc

Inventors

• Fowles Andrew Mark
• King Chloe Rebecca

Classifications

• C05D9/02

  containing trace elements · CPC title

• A01N47/28

  Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< (isoureas, isothioureas A01N47/42) · CPC title

• C05D3/00

  Calcareous fertilisers (C05D7/00 takes precedence) · CPC title

• A01N25/04 Primary

  Dispersions, {emulsions, suspoemulsions, suspension concentrates} or gels (foams A01N25/16) · CPC title

• C05D5/00

  Fertilisers containing magnesium (C05D7/00 takes precedence) · CPC title