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US4767440A Expired / Lapsed US ⏱️ 0.0 years remaining

Potting media

Assignee: University of Nebraska System
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Filing: 1984-12-10
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Granted: 1988-08-30
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Expires: 2004-12-10
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Abstract

Abstract To prepare an effective potting media from waste plant products, a mixture of high carbon and high nitrogen organic material is mixed with a phosphoric acid solution to maintain a pH of between 5.5 and 7.1 under aerobic conditions, with or without soil. Ground wheat straw or other high carbon plant materials and ground alfalfa hay or other high nitrogen plant materials are used in the preferred embodiment in ratios of between three parts ground wheat straw or other high carbon plant materials for each seven parts of ground alfalfa hay or other high nitrogen plant materials to seven parts ground wheat straw or other high carbon plant materials for each three parts ground alfalfa hay or other high nitrogen plant materials. The mixture of wheat straw and alfalfa hay has a pH in the range of 7.0 to 8.1. Phosphoric acid 0.04 M is added periodically for approximately one month if the pH of the mixture is higher than desirable for the plant type. The potting media both with and without soil and with and without the addition of fertilizer show unexpectedly good results on plant life which are superior than peat moss or other types of potting media.

Inventors

  • 👤 Sotero S. Salac

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 19:22
CPC Classifications
C; C05; C05F; C05F11/00; Y; Y02; Y02W; Y02W30/00; Y02W30/40

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 41 words
A growing medium comprising: pulverized alfalfa hay; pulverized wheat straw; and said alfalfa hay and wheat straw being mixed together in substantially equal volumes wherein a mixture having a ratio of carbon-to-nitrogen of substantially seventeen to one by weight is formed.
Claim 2
Dependent Claim 41 words
A growing medium comprising: pulverized alfalfa hay; pulverized wheat straw; and said alfalfa hay and wheat straw being mixed together in substantially equal volumes wherein a mixture having a ratio of carbon-to-nitrogen of substantially seventeen to one by weight is formed.
Claim 3
Dependent Claim 11 words
A growing medium in accordance with claim 1 further including topsoil.
Claim 4
Dependent Claim 11 words
A growing medium in accordance with claim 1 further including sand.
Claim 5
Dependent Claim 11 words
A growing medium in accordance with claim 1 further including perlite.
Claim 6
Dependent Claim 11 words
A growing medium in accordance with claim 1 further including vermiculite.
Claim 7
Dependent Claim 22 words
A growing medium according to claim 1 in which the mixture is a compost, whereby anaerobic creation of unpleasant odors is avoided.
Claim 8
Dependent Claim 116 words
A growing medium comprising: pulverized alfalfa hay; pulverized wheat straw; said alfalfa hay and wheat straw being mixed together in the range of proportions of seven volumes of alfalfa hay to three volumes of wheat straw and three volumes of alfalfa hay to seven volumes of wheat straw wherein a mixture is formed having a ratio of nitrogen-to-carbon substantially in the range of one part by weight of nitrogen to sixteen parts by weight of carbon and one part by weight of nitrogen to twenty-three parts by weight of carbon; and said growing medium including an acid mixed in sufficient proportion to reduce the pH of the mixture to a range of between 5.5 and 7.1.
Claim 9
Dependent Claim 116 words
A growing medium comprising: pulverized alfalfa hay; pulverized wheat straw; said alfalfa hay and wheat straw being mixed together in the range of proportions of seven volumes of alfalfa hay to three volumes of wheat straw and three volumes of alfalfa hay to seven volumes of wheat straw wherein a mixture is formed having a ratio of nitrogen-to-carbon substantially in the range of one part by weight of nitrogen to sixteen parts by weight of carbon and one part by weight of nitrogen to twenty-three parts by weight of carbon; and said growing medium including an acid mixed in sufficient proportion to reduce the pH of the mixture to a range of between 5.5 and 7.1.
Claim 10
Dependent Claim 11 words
A growing medium in accordance with claim 7 further including topsoil.
Claim 11
Dependent Claim 11 words
A growing medium in accordance with claim 7 further including sand.
Claim 12
Dependent Claim 11 words
A growing medium in accordance with claim 7 further including perlite.
Claim 13
Dependent Claim 11 words
A growing medium in accordance with claim 7 further including vermiculite.

References Cited (Backward Citations)

JPS5157554A Cited
US4067716A Cited
US4135907A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-08-30 1992-02-29 1992-08-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-08-30 1996-02-29 1996-08-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-08-30 2000-02-29 2000-08-30 $7700.00 Window Closed / Lapsed

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