Donlar Corporation

J Larry Sanders

Larry P Koskan

Robert J Ross

Abdul R Meah

Tree seedlings, especially pine tree nursery seedlings, are treated, for example, by a root soak with a water-soluble, polyorganic acid, having a molecular weight size of more than 1,500 Daltons. Particularly suitable for this purpose are polyamino acids such as polyaspartic acid.

Treatment of tree seedlings to enhance survival rate

This invention relates to enhancing plant productivity employing a method and improved compositions containing water-soluble crosslinked polyamino acids having a weight average molecular weight of a size larger than about 1,500. More particularly, crosslinked polyamino acids enhance plant productivity when supplied to the plant directly as the free acid or salt thereof or hydrolyzed from a crosslinked precursor of the crosslinked polyamino acid by the method disclosed. Particularly suitable for this purpose are water-soluble, crosslinked polyaspartic acid, and salts thereof and hydrolyzed crosslinked polysuccinimide.

Method and composition for enhanced plant productivity comprising

Plant productivity in a hydroponic medium is enhanced by the addition of a water-soluble, non-biodegradable, non-peptidal polymeric acid having a molecular size larger than about 1,500 Daltons.

Method for enhanced hydroponic plant productivity with polymeric acids

This invention relates to enhancing plant productivity employing a method and improved compositions containing water-soluble amino acid co-polymers having a molecular size larger than about 1,500 Daltons.

Method and composition for enhanced hydroponic plant productivity with

An insecticide composition is enhanced from the standpoint of its ability to be absorbed by insects, such as red fire ants, particularly dithiophosphate ester pesticides by the addition of a small amount of a water soluble non-aromatic polyorganic acid or salt form thereof such as polyaspartic acid, particularly preferred with a molecular weight in the range of about 3000 to 40,000.

Polyaspartic acid and its analogues in combination with insecticides

A herbicide composition which comprises a herbicide and a small but herbicide absorption enhancing effective amount of a water soluble, non-aromatic polyorganic acid or a salt or copolymer thereof such as polyaspartic acid.

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Lockport, IL, United States of America

J Larry Sanders