# US 2018/0022659 A1 · Arbuscular mycorrhizal seed and in-furrow compositions containing polyethylene glycol and methods of their use

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- Number: US 2018/0022659 A1
- Document ID: US20180022659A1
- Status: Published application
- Kind: A1
- Application number: 15/656,303
- Filed: 2017-07-21
- Published: 2018-01-25
- Earliest claimed: 2016-07-22
- Assignees: Valent BioSciences Corporation
- Applicants: Valent BioSciences LLC
- Inventors: Bala N. Devisetty; Alok Adholeya
- Web page: https://patentgrep.com/patent/US20180022659A1

## CPC

- C05F 11/08: Organic fertilisers containing added bacterial cultures, mycelia or the like
- A01C 1/06: Coating or dressing seed
- C05G 5/27: Dispersions, e.g. suspensions or emulsions
- C05F: ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- A01C: PLANTING; SOWING; FERTILISING (parts, details or accessories of agricultural machines or implements, in general A01B51/00 - A01B75/00)
- C05G: MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS (organic fertilisers containing added bacterial cultures, mycelia, or the like C05F11/08; organic fertilisers containing plant vitamins or hormones C05F11/10); FERTILISERS CHARACTERISED BY THEIR FORM

## 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.

## Claims

### Claim 1

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

### Claim 2 (depends on 1)

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

### Claim 3 (depends on 1)

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

### Claim 4 (depends on 3)

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

### Claim 5 (depends on 1)

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

### Claim 6 (depends on 5)

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

### Claim 7 (depends on 6)

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

### Claim 8 (depends on 1)

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

### Claim 9 (depends on 8)

The composition of claim 8, wherein the rheological additive is an alkyl quaternary ammonium clay.

### Claim 10 (depends on 1)

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

### Claim 11 (depends on 10)

The composition of claim 10, wherein the polar additive is 1,2-propanediol cyclic carbonate.

### Claim 12 (depends on 1)

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

### Claim 13 (depends on 1)

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

### Claim 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.

### Claim 15 (depends on 14)

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.

### Claim 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.

### Claim 17 (depends on 16)

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.

### Claim 18 (depends on 1)

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.

### Claim 19 (depends on 18)

The method of claim 18, wherein the composition is applied to seeds.

### Claim 20 (depends on 18)

The method of claim 18, 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.