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US 4,906,273 AGranted
Plant growth medium
OwnerWilburn T. Wrightinventor
Life of this patent
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Abstract
An improved plant growth medium is prepared by treating a conventionally composted bio-mass waste material with an aqueous solution or dispersion of an antimicrobial in an amount which selectively inhibits deleterious rhizobacteria.
Claims12
In a process for making a plant growth medium including the steps of composting a bio-mass waste material by building a pile of the waste material;
- moistening the pile with water;
- and turning, whereby the temperature within the pile is caused to rise;
- and obtaining a composted bio-mass waste material;
- the improvement comprising drenching the composted bio-mass waste material with an aqueous solution or dispersion of an antimicrobial selected from the group consisting of hexachlorophene, the alkali metal salts thereof, bis(trichlorophenyl) sulfoxide, 2,4,5 trichlorsaligenol, dimethyl sulfoxide trichlorophenol and hexachlorfluorescin in an amount which inhibits deleterious rhizobacteria without inhibiting plant growth-promoting rhizobacteria.
1 more element
Dependencies are inferred from the claim text.