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US5301466A
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US
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Production of sod using a soil-less sand based root zone medium
Assignee: Individual
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Filing: 1992-08-07
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Granted: 1994-04-12
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Expires: 2012-08-07
Abstract
Abstract The present invention relates to a soil-less sand based root zone medium for the production of sod. The present invention is also directed to a method for the production of sod using a soil-less sand based root zone medium and a sod mat produced by the method of the present invention.
Inventors
- 👤 Michael A. Egan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:39
CPC Classifications
A; A01; A01C; A01C1/00; A01C1/04; A01C1/044; A01G; A01G20/00; A01G20/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
175 words
A method of cultivating developing and growing turf grass in sod form, the method comprising the steps of a) determining the grain size and distribution of sand at a transplant site; b) blending a soil-less sand based root zone material to form a soil-less blend that has a grain size and distribution of sand that substantially matches the grain size and distribution of said at the transplant site; c) laying down a water permeable root impermeable barrier; d) depositing from about 0.25 to about 1.0 inches of said soil-less blend on top of said water permeable root impermeable barrier; e) introducing seeds, stolons, springs or plugs of a turf grass into the soil-less sand based root zone material; f) propogating the seeds, stolens, sprigs, or plugs into a harvestable mat of combined turf grass sod and root zone medium characterized by having a water infiltration rate of 2 to 10 inches per hour and a grain size and distribution of sand that substantially matches the grain size and distribution of sand at said transplant site.
Claim 2
Independent Claim
175 words
A method of cultivating developing and growing turf grass in sod form, the method comprising the steps of a) determining the grain size and distribution of sand at a transplant site; b) blending a soil-less sand based root zone material to form a soil-less blend that has a grain size and distribution of sand that substantially matches the grain size and distribution of said at the transplant site; c) laying down a water permeable root impermeable barrier; d) depositing from about 0.25 to about 1.0 inches of said soil-less blend on top of said water permeable root impermeable barrier; e) introducing seeds, stolons, springs or plugs of a turf grass into the soil-less sand based root zone material; f) propogating the seeds, stolens, sprigs, or plugs into a harvestable mat of combined turf grass sod and root zone medium characterized by having a water infiltration rate of 2 to 10 inches per hour and a grain size and distribution of sand that substantially matches the grain size and distribution of sand at said transplant site.
Claim 3
Dependent Claim
45 words
The method of claim 1 wherein said soil-less said based root medium comprises: (a) from about 60% by weight to about 100% by weight sand; (b) from about 40% by weight to about 0% by weight organic amendment; and (c) an effective amount of fertilizer.
Claim 4
Dependent Claim
27 words
The method of claim 1 wherein said organic amendments are selected from the group consisting of peats, processed sludge, rice hulls, fibrous plant materials, and organic polymers.
Claim 5
Dependent Claim
14 words
The method of claim 2 wherein the organic amendment is Canadian sphagnum peat moss.
Claim 6
Dependent Claim
25 words
The method of claim 2 wherein the soil-less sand based root medium contains about 80% by weight sand and about 20% by weight organic amendment.
Claim 7
Dependent Claim
14 words
The method of claim 5 wherein the organic amendment is Canadian sphagnum peat moss.
Claim 8
Dependent Claim
26 words
The method of claim 2 wherein the soil-less sand based root zone medium contains about 70% by weight sand and about 30% by weight organic amendment.
Claim 9
Dependent Claim
14 words
The method of claim 7 wherein the organic amendment is Canadian sphagnum peat moss.
Claim 10
Dependent Claim
26 words
The method of claim 2 wherein the sand grains are of a substantially uniform size within the range of about 0.05 mm to about 1 mm.
Claim 11
Dependent Claim
26 words
The method of claim 1 further comprising blending grass seed with the soil-less sand based root zone medium prior to deposition on the root impermeable layer.
Claim 12
Dependent Claim
14 words
The method of claim 1 wherein the root impermeable layer is a synthetic material.
Claim 13
Dependent Claim
13 words
The root impermeable layer of claim 11 wherein the synthetic material is polyethylene.
Claim 14
Dependent Claim
26 words
A sod mat produced by the method of claim 1 comprising a mat of turf grass and a layer of soil-less sand based root zone medium.
Claim 15
Dependent Claim
14 words
A sod mat according to claim 13 wherein the grass is a Bermuda grass.
Claim 16
Dependent Claim
14 words
A sod mat according to claim 1 wherein the grass is a Zoysia grass.
Claim 17
Dependent Claim
14 words
A sod mat according to claim 1 wherein the grass is a bent grass.
Claim 18
Dependent Claim
22 words
A sod mat according to claim 1 wherein the grass is selected from the group consisting of Fescues, Rye and Buffalo grass.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-04-11 | 1997-10-11 | 1998-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-04-11 | 2001-10-11 | 2002-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-04-11 | 2005-10-11 | 2006-04-12 | $7700.00 | Window Closed / Lapsed |