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Plant growth media and processes for production thereof and compositions for use therein

A plant growth and culture medium technology, applied in the field of pre-mixed compositions, can solve the problems of ineffective rewetting, reduced efficacy and reduced effectiveness of surfactants, etc., and achieve the effect of reduced effectiveness of continuous wetting

Inactive Publication Date: 2007-11-07
OMS INVESTMENTS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, serious problems have been encountered when incorporating these surfactants or wetting agents into growing media or potting mixes
That is, if the surfactant-treated growth medium dries out, for example because the treated growth medium has been stored for too long before use, the efficacy of the surfactant is reduced so that the growth medium does not dry out after this period of time. capable of effectively rewetting
Additionally, it has been found that once the growth medium is in use, the effectiveness of surfactants as humectants to maintain the moisture content of the growth medium tends to detrimentally decrease over time.

Method used

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  • Plant growth media and processes for production thereof and compositions for use therein
  • Plant growth media and processes for production thereof and compositions for use therein
  • Plant growth media and processes for production thereof and compositions for use therein

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] By mixing 601.40 grams of desiccated coir pith (20% or less moisture content w / w) with 400 grams of a nonionic surfactant (sold under the trade name PLURONIC L62 by BASF Corporation containing polyoxyethylene and polyoxypropylene) A block copolymer alkoxylated polyol nonionic surfactant) and 3600 grams of water were mixed to prepare a premix composition. The mixture was then air-dried in a glasshouse to improve flowability and the resulting intermix composition was weighed to determine a total weight of the premix composition of 983 grams. Thus, the surfactant content of the premix composition was calculated to be 40.7% (400 grams of surfactant in the composition / 983 grams of the total weight of the premix composition).

[0038] Then, 0.70 grams of the intervention mix composition containing 40.7% surfactant was incorporated into 1 liter of plant growth medium containing 70% (volume) sphagnum peat and 30% (volume) coir pith. This amount of premixed composition will del...

Embodiment 2

[0041] This example serves to demonstrate that premix compositions of the present invention containing coir pith and surfactants provide enhanced rewetting characteristics in plant growth media, such as potting soil, that surfactants alone do not.

[0042] A premix composition was prepared by mixing 70 grams of copra pith with 70 grams of a nonionic surfactant (proprietary nonionic surfactant sold under the tradename ACA 2000M by Aquatrols, USA). Thus, the surfactant content of the premix composition was calculated to be 50% (70 grams of surfactant in the composition / 140 grams of the total weight of the premix composition).

[0043] Prepare potting soil consisting of 45% sphagnum peat, 45% composted bark powder, 10% perlite mix and divide into 3 batches. Apply the following treatments to the potting soil:

[0044] 1. Spray 4 fluid ounces per cubic yard of ACA 2000M Surfactant to the first batch of potting soil;

[0045] 2. Apply 4 fluid ounces per cubic yard of ACA 2000M Sur...

Embodiment 3

[0050] This example serves to demonstrate that the premix combination of the present invention containing coir pith and surfactants provides enhanced wetting characteristics in plant growth media, such as potting soil, that the coir pith carrier alone does not provide.

[0051] Prepare potting soil consisting of 45% sphagnum peat, 45% composted bark powder, 10% perlite mix and divide into 3 batches. Apply the following treatments to the potting soil.

[0052] 1. Following the procedure described in Example 2, apply 4 fluid ounces per cubic yard of ACA 2000M Surfactant to the first batch of potting soil in the form of a 50% by weight premix composition of surfactant mixed with coir pith agent;

[0053] 2. The same amount of coir pith was applied to the potting soil as in Treatment I above, but no surfactant was mixed with the coir pith.

[0054] 3. Adopt the control sample without additive coconut fiber pith or surfactant as the third batch of potting soil.

[0055] After pr...

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Abstract

A pre-mix composition is disclosed for use in treating a plant growth medium to promote improved wetting and re-wetting thereof comprising a mixture of coconut coir pith and a horticulturally acceptable surfactant. A process for treating a plant growth medium utilizing such pre-mix composition is also disclosed as well as the treated plant growth medium.

Description

technical field [0001] The present invention relates to premix compositions for use in plant growth media, to plant growth media incorporating such premix compositions, and to methods of preparing such plant growth media. More specifically, the present invention relates to mixed coconut coirpith / surfactant compositions formulated to be incorporated into plant growth media to enhance wetting when the media is used, and to enhance rewetting of the medium if it has dried out, and relates to plant growth medium containing such a premix composition containing coconut pith ("coir fiber") and selected surface The active agent, said premix composition is incorporated into said plant growth medium to promote its new and improved wetting and rewetting properties, and also relates to a method for the preparation of such plant growth medium. Background technique [0002] Examples of organic materials suitable for use as a plant growth medium in the present invention include sphagnum mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G31/00A01G1/00A01G7/00A01G9/10C05G3/80C09K17/14C09K17/32C09K101/00
CPCA01G9/1086A01G24/25A01G24/30A01G24/00
Inventor 马克·叶拉尼奇理查德·P·维塔诺维茨
Owner OMS INVESTMENTS INC
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