Arbuscular mycorrhizal seed and in-furrow compositions containing polyethylene glycol and methods of their use

Patent metadata

Field	Value
Publication number	US-10457611-B2
Application number	US-201715656303-A
Country	US
Kind code	B2
Filing date	Jul 21, 2017
Priority date	Jul 22, 2016
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

The present invention is directed to Mycorrhizal seed and in-furrow compositions containing polyethylene glycol. The present invention is further directed to methods of improving plant growth by applying Mycorrhizal seed and in-furrow compositions containing polyethylene glycol to a plant, plant propagation material or an area where a plant will grow.

First claim

What is claimed is:

1. A plant growth composition comprising from about 0.2% to about 20% w/w Mycorrhizae technical powder concentrate from about 66% to about 97% w/w of a polyethylene glycol, and from about 1% to about 5% w/w of an alkyl quaternary ammonium clay wherein % w/w denotes percent weight by total weight of the composition.

2. The composition of claim 1 , wherein the composition is free of water.

3. The composition of claim 1 , wherein the polyethylene glycol has an average molecular weight from about 200 to about 400 daltons.

4. The composition of claim 3 , wherein the polyethylene glycol has an average molecular weight of 200 daltons.

5. The composition of claim 1 , further comprising from about 0.5% to about 5% w/w of a surfactant.

6. The composition of claim 5 , wherein the surfactant is a non-ionic surfactant.

7. The composition of claim 6 , wherein the non-ionic surfactant comprises polysorbate 20.

8. The composition of claim 1 , wherein the composition comprises more than about 3,000 propagules per gram.

9. The composition of claim 1 , wherein the composition passes through a sieve comprising holes from about 105 to about 150 microns in diameter.

10. A method of improving plant growth comprising applying a composition of claim 1 to a plant, plant propagation material or an area where a plant will grow.

11. The method of claim 10 , wherein the composition is applied to seeds.

12. The method of claim 10 , wherein the composition is applied to an area where a plant will grow and wherein the area will a plant will grow is soil in the form of a furrow.

13. A plant growth composition comprising from about 0.2% to about 20% w/w Mycorrhizae technical powder concentrate from about 66% to about 97% w/w of a polyethylene glycol, and from about 0.5% to about 5% w/w of 1,2-propanediol cyclic carbonate wherein % w/w denotes percent weight by total weight of the composition.

14. A seed treatment composition comprising:
from about 2% to about 11% w/w Mycorrhizae technical powder concentrate
from about 75% to about 96% w/w of a polyethylene glycol with an average molecular weight from about 200 to about 400 daltons;
from about 1% to about 3% w/w alkyl quaternary ammonium clay;
from about 0.5% to about 5% w/w 1,2-propanediol cyclic carbonate; and
from about 0% to about 4% w/w polysorbate 20,

wherein % w/w denotes percent weight by total weight of the composition.

15. The seed treatment composition of claim 14 comprising:
about 7.4% w/w Mycorrhizae technical powder concentrate
about 85% w/w polyethylene glycol 200;
about 3% w/w alkyl quaternary ammonium clay;
about 2% w/w 1,2-propanediol cyclic carbonate; and
about 3% w/w polysorbate 20,

wherein % w/w denotes percent weight by total weight of the composition.

16. An in-furrow composition comprising:
from about 0.2% to about 8% w/w Mycorrhizae technical powder concentrate
from about 74% to about 97% w/w of a polyethylene glycol with an average molecular weight from about 100 to about 400 daltons;
from about 1% to about 3% w/w alkyl quaternary ammonium clay;
from about 0.5% to about 5% w/w 1,2-propanediol cyclic carbonate; and
from about 0.5% to about 4% w/w polysorbate 20,

wherein % w/w denotes percent weight by total weight of the composition.

17. The in-furrow composition of claim 16 comprising:
about 1.5% w/w Mycorrhizae;
about 91% w/w polyethylene glycol 200;
about 2.5% w/w alkyl quaternary ammonium clay;
about 2% w/w 1,2-propanediol cyclic carbonate; and
about 3% w/w polysorbate 20,

wherein % w/w denotes percent weight by total weight of the composition.

Assignees

• Valent Biosciences Llc

Inventors

• Devisetty Bala N
• Adholeya Alok

Classifications

• C05F11/08 Primary

  Organic fertilisers containing added bacterial cultures, mycelia or the like · CPC title

• A01C1/06

  Coating or dressing seed · CPC title

• C05G3/0064

  Chemistry & Metallurgy · mapped topic

• C05G5/27

  Dispersions, e.g. suspensions or emulsions · CPC title