Plant protecting and regulating compositions – Plant growth regulating compositions – Plural active ingredients
Patent
1991-04-25
1994-01-11
Ivy, C. Warren
Plant protecting and regulating compositions
Plant growth regulating compositions
Plural active ingredients
504123, 504125, 424 71, 514722, 514772, 514784, 514788, A01N 5900
Patent
active
052781321
ABSTRACT:
The invention provides a concentrate for dilution with water in the preparation of an agricultural composition for application to crops, soil or animals and comprising an agricultural chemical whose agricultural activty varies with the pH of the water; and the invention provides a method of preparing such agricultural composition by mixing the concentrate with water and effecting such pH modification to the composition as is necessary to obtain a pH in the composition at which the agricultural activity of the chemical is acceptable. The concentrate comprises an active ingredient and a pH indicator for colouring the water, and the proportions of pH indicator and active ingredient are selected so that when the concentrate is diluted with water to provide an effective concentration of active ingredient in the water, the pH indicator indicates visually whether or not the pH of the water is suitable for acceptable agricultural activity of the chemical.
REFERENCES:
patent: 2599697 (1952-06-01), Conklin
patent: 3244502 (1966-04-01), Woogerd
patent: 3770641 (1973-10-01), Cantor et al.
patent: 4062649 (1977-12-01), Kuderna et al.
patent: 4214888 (1980-07-01), Young
Earth Chem "Color Indicators for fumigate insecticides" CA 98 1682j (1983).
Canadian Award "Agricultural Innovations Competition 1992" with translation 1992.
Bloomberg Martin D.
Fisher Jonah
Gouws & Scheepers (Propietary) Ltd.
Ivy C. Warren
Owens A.
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